Found this 12000mah USB power bank on CPC.
Cheaper than I could find elsewhere, even cheaper than int'l Ebay sellers.
CPC say 'unbranded' but its a 'Reviva'. See (my poor quality/dirty) photo (it was as-new when it arrived..)
I was a bit skeptical at the price but quality seems good.
Comes with adaptors for old iphone/ipod, microUSB, miniUSB. Came about 85% charged.
CPC free delivery over £5
CPC description:
Portable, high capacity 12,00mAh powerbank charger. Sleek and compact design with a gloss black finish.
Two full size USB outputs; simultaneously charge 2 devices
2.1A output (Output 2) is ideal for recharging tablets
Multiple charging tips cover most devices
Compatible with all standard USB charging leads
Integrated LED display shows remaining charge
Recharges via USB connection (charging time up to 17 hours)
Dimensions (HxWxD): 22x77x95mm
12000mah (687 in stock) £5.94
http://cpc.farnell.com/unbranded/pwrp12bkre/power-bank-12-000mah-reviva/dp/SB06200
others:
6600mah (695 in stock) £4.74
http://cpc.farnell.com/unbranded/pwrp6bkre/power-bank-6-000mah-reviva/dp/SB06206
2000mah (684 in stock) £2.34 (2quid!)
http://cpc.farnell.com/unbranded/pwrp2bkre/power-bank-2-000mah-reviva/dp/SB06221
Top comments
cpctweet
15 Jul 1610#97
Hi all,
With order volumes like we get from HUKD we do unfortunately have stock run out quicker than the site reflects. We have explained in the past but it an easy way to explain it is this - there is one code left, 50 of you order it - we assign it to the fist order that hits our system and the rest unfortunately get a cancellation email. We are sorry about it, we work hard to try and stop it - but it does happen.
Using this code as an example (before someone says "but i ordered with x left") - we sold something like 850 of these in a morning. We have rules in place on high volume orders, new accounts, fraud holds based on some triggers etc. We basically have an element of manual work to clear orders, we do not allocate stock from the web to these orders until we pass these rules - what that means is, you may see 100 left in stock but we may have 120 orders "received" and progressing through. This is not normally an issue, except when we get end of line items being hit with demand.... like happens here.
So, we are sorry, we do our best to be as accurate as possible with stock but it's more likely to happen with HUKD hot products than a typical sale.
Hope that clarifies for everyone - especially those who have been disappointed with this one.
FantasyDeals
14 Jul 168#10
Who else is thinking Pokemon Go? :smirk:
Darkeru
14 Jul 166#1
£2.50 Handling Charge for anything under £5 (exl VAT).
good point. I already had other items when I bought mine :smiley:
donslibi
14 Jul 16#3
Nice find, ordered :smiley:
tezray
14 Jul 16#4
Thanks I have been looking for a power bank this one is probably a lot bigger and heavier than what I need but should do the job nicely just hope the 2.1 can fast charge my s7 edge thanks and thanks for the 10p plug thing used it
srw985 to tezray
14 Jul 161#12
Nah, you need something with "quick charge 2.0", check Amazon
jeffjack
14 Jul 165#5
just think, moar pokemon
tezray
14 Jul 161#6
lol thought about that my car charger socket is rubbish nothing stays in it I spend loads of time in traffic travelling under the 20kmh limit so phone sat on passenger seat hatching eggs and battery draining fast
Johnny Bravo
14 Jul 16#7
Hi, how heavy is this one please? Got a 22400 one which is great but could do with a bit smaller one for everyday use. Thanks
Magister to Johnny Bravo
14 Jul 16#14
340 grams
jeffjack to Johnny Bravo
14 Jul 16#15
kitchen scales say it's 287g. which is about double what my phone weighs.
I suspect they're made with cheap mass-produced Li-ion cells from China. These are always hit and miss in terms of quality. You could get lucky, you might not. They might last a couple of years, they might last a week. If you fancy a gamble these are maybe worth a punt. For me though I'd rather pay a bit more for some proven reliability.
jamdog30
14 Jul 16#29
Is this for Pokemon go?
tezray
14 Jul 16#30
Probably right but how much is a bit more I didnt want to spend 20 to 40 pound for something that will sit in my bag to not be used very often and when i looked so many different makes and varied prices what is a good one I have seen Anker seem to be raved about but they are very expensive
Harryisme
15 Jul 16#31
Thanks ordered two, gonna need the battery as Pokemon Go drinks way too much juice.
While I do believe in paying more for better quality, I think I'll order this. I've ordered quite a few Anker items, some batteries, some not and they are decent for the price but I've had issues with 1 of their batteries and my email went unanswered. The battery on my Anker speaker is faulty (quite common looking at reviews). My point is that paying more doesn't guarantee a trouble free experience, just reduces the likelihood of problems. One power bank I do recommend when it's on offer is the VINSIC 20,000mAh model. Very impressed with it.
Lazarus42
15 Jul 16#34
Nice one! Heat added and ordered. Thanks for the find op!
srw985
15 Jul 16#35
2.1 amp should be plenty, will still charge the phone fairly fast unless you're doing something very intensive.
Thanks OP, just ordered and bought the random 6p item to get total over £5.00 for free postage.
Paid £15 for a 10000 mAH in the sale for one the other day from Tesco. Thought I'd share that with you guys.
digit1guy
15 Jul 16#39
I bought this of Ebay and its been really good although now a little dearer
Portable Power Bank 50000mah External Battery Charger For Mobile Phone iPad PDA
ITEM PRICE:
£10.59 although a little dearer now
Thanks , can't complain at £6.01. And thanks to the OP. Ordered.
plewis00
15 Jul 16#49
Unbranded, from HK (weeks delivery), guaranteed it won't be 12000mAh, single USB output, no LED percentage remaining display, not even remotely comparable to the CPC deal.
plewis00
15 Jul 16#50
Or buy two (or the small 2000mAh one) to get over the free postage bracket!
AFCdanielR
15 Jul 16#51
Just ordered for £6 total. Says "your order is subject to credit check and authorisation". Why a credit check? I chose to pay via debit card and put in my card details....
RedSeven
15 Jul 16#52
grabbed for holidays - thanks OP
smanet
15 Jul 16#53
Thanks OP, very good deal!
TornadoShaun
15 Jul 16#54
Hot hot hot, and just when I'm looking to buy a power bank for Pokémon Go xD
kupon
15 Jul 16#55
Probably just a standard message that appears after any payment is submitted to CPC. I got the same message when I paid,
Stock is getting low now, only about 100 units left and they are going fast! However, there is "More stock available week commencing 25/07/16" apparently.
The reviews on Amazon for the 12,000mah Reviva are very positive (all 6 of them). There are four 5 star reviews and two 4 star reviews altogether. Definitely worth a punt at this price.
Other useful items worth adding to take the order above £6 are insulation tape and 100x cable ties which are about 20p.
Add this to your order as another option. Can never have enough iPhone cables :smiley:
KD8
15 Jul 16#58
How safe are these power banks? Considering you hear of mobile phone batteries exploding, I would think the level of testing on the power banks are fairly minimal and would worry one going wrong.
kupon
15 Jul 16#59
Only 30 left...
mattster
15 Jul 16#60
I think the smaller two are only 1A outputs. Slow charging :/
kupon
15 Jul 16#61
25...
PIXeL_92
15 Jul 16#62
May have a walk down on my lunch to pick one up. Saves me ordering a 6p item to get it delivered :smile:
kupon
15 Jul 16#63
Now only 15 left. They will sell out in the next 5 minutes for sure.
jasejames
15 Jul 16#64
Nice, thanks OP.
I needed some capacitors (about a quid's worth) and had no reason to spend a fiver with CPC at the minute, so the two came together quite nicely :smiley:
Petef15h
15 Jul 16#65
7 left now
kupon
15 Jul 16#66
All gone! But there will be "More stock available week commencing 25/07/16" apparently.
dry
15 Jul 16#67
Thanks, ordered together with some cable ties.
MrDre
15 Jul 16#68
ordered one anyway, will wait for more stock.
Bought an ebay special 20,000mah solar charger
1. Charges a 2000mah batter max of 2 times
2. Solar doesn't work.
3. When plugged into the mains to charge, you get weird electric shocks.
Lovely.
no doubt this will be much better.
cpctweet
15 Jul 16#69
Hi All
Just to let you know that this is now out of stock - Could you please expire?
Thanks
newsgroupmonkey
15 Jul 16#70
Wow! I ordered one about an hour and a half ago. There were 438 left!
Tbf, I used to opportunity to pick up some car bits I've been meaning to order too.
Hotd22
15 Jul 16#71
This item is no longer stocked folks!
Badgers
15 Jul 16#72
Ordered thanks
OhhSoBadly
15 Jul 16#73
Oos
spannerzone
15 Jul 16#74
so who ordered 50 to resell on fleabay for £20 a pop? most places seem to sell this for around £50!
MrDre
15 Jul 16#75
order cancelled :disappointed:
davening
15 Jul 16#76
Thanks, ordered 2 to give to friends.
simate
15 Jul 16#77
No way is that 50,000mah! :laughing:
simate
15 Jul 16#78
That is one powerful batter! :laughing:
SlightlyUnusual
15 Jul 16#79
Just had my order cancelled. Not a great first impression of the company!
leejameswhitehouse
15 Jul 16#80
My order was cancelled to, annoying as hell!
TornadoShaun
15 Jul 16#81
Same here. Cancellations all round? Wonder if I'll still get the 6p crapstick I didn't really want... and be charged delivery for the privilege Lol
W_jelly1
15 Jul 16#82
just having the same conversation with my kids and found this...
tezray
15 Jul 16#83
do you think they had the wrong stock level mine is still processing. Any reason why it was cancelled
kreig
15 Jul 16#84
Cancelled :disappointed:
davening
15 Jul 16#85
mine 2 orders cancelled too...
joolt
15 Jul 16#86
Mine still says "processing" (there were 150 or so left at the time I ordered), assuming they must be cancelling some of the last to order due to stock levels, bit daft though when there's apparently stock due in soon
gordy1
15 Jul 16#87
Any explanation for the cancelations?
davening
15 Jul 16#88
It might be possible they want to update price for new stock?
now186
15 Jul 16#89
Mine cancelled two
Email states
"... Apologises but the item you have ordered is no longer stocked. We will cancel this order for you. Apologises for any inconvenience caused".
When I ordered they had 80+ in stock
Cauterise
15 Jul 16#90
mine says "complete" and has a PO number.
simate
15 Jul 16#91
Not sure what the PO Number represents other than the date/time it was ordered.
simate
15 Jul 16#92
Just seen I have a UPS tracking number :smiley:
GAVINLEWISHUKD
15 Jul 16#93
Did you order for Sat or Mon?
simate
15 Jul 16#94
I didn't know there was an option lol so I have no idea. All I do remember is it saying 3-5 days delivery.
Placenta
15 Jul 16#95
Ordered one (1), along with a tempered glass screen protector around 7:00am. Showing as 'processed', with a tracking number.
tezray
15 Jul 162#96
mine says complete now and have a ups tracking number but cannot track yet
cpctweet
15 Jul 1610#97
Hi all,
With order volumes like we get from HUKD we do unfortunately have stock run out quicker than the site reflects. We have explained in the past but it an easy way to explain it is this - there is one code left, 50 of you order it - we assign it to the fist order that hits our system and the rest unfortunately get a cancellation email. We are sorry about it, we work hard to try and stop it - but it does happen.
Using this code as an example (before someone says "but i ordered with x left") - we sold something like 850 of these in a morning. We have rules in place on high volume orders, new accounts, fraud holds based on some triggers etc. We basically have an element of manual work to clear orders, we do not allocate stock from the web to these orders until we pass these rules - what that means is, you may see 100 left in stock but we may have 120 orders "received" and progressing through. This is not normally an issue, except when we get end of line items being hit with demand.... like happens here.
So, we are sorry, we do our best to be as accurate as possible with stock but it's more likely to happen with HUKD hot products than a typical sale.
Hope that clarifies for everyone - especially those who have been disappointed with this one.
adzy148
15 Jul 16#98
exact same, somehow i am a trade account member for cpc :?
Harryisme
15 Jul 16#99
Good thing I didn't wait around like I usually do and just ordered, mine is showing as completed with UPS label created.
Now my Pokemon Go addiction can go on for longer periods. I will find that Squirtle that keeps showing as close by, mark my work, same with that Abra.
mbugsy18
15 Jul 16#100
When did you order?
spannerzone
15 Jul 16#101
I also have a ups next to mine, there were 640 in stock when ordered and I'm a regular customer so that probably helped.
tezray
15 Jul 16#102
It doesn't say but about 15 minutes after it was posted quick Google around the bought my ups has updated ready for ups
cjrp
15 Jul 16#103
Showing as out of stock but available to pre order due 25/7 so I've ordered a couple, thanks
simate
15 Jul 16#104
Has anyone's actually shipped yet?
digit1guy
16 Jul 16#105
I have been using it since Dec and its been really good I even use it to power a mobile wifi webcam, and charges both my tablet and phone as required , I cant confirm if it is as stated , but it has been reliable and done the job intended.
spannerzone
16 Jul 16#106
Yes mine is in transit with UPS scheduled for Monday delivery
cjrp
16 Jul 16#107
Update
Cancelled now saying no longer stocked :disappointed:
tezray
16 Jul 16#108
Same here wish I had ordered a smaller one as well instead of that 10p cable thing
spannerzone
16 Jul 16#109
I bought some other bits and pieces, that's the 'trouble' with CPC - for a techy nerd like me I can spend all my wages there :smile:
simate
16 Jul 16#110
Mine too now :smiley:
Scheduled Delivery:
Monday, 18/07/2016, By End of Day
Last Location:
Departed - Tamworth, United Kingdom, Saturday, 16/07/2016
phpandsql
16 Jul 16#111
Anyone received? Any good?
gordy1
18 Jul 16#112
Mine arrived this morning. Seem decent quality. As described. Only time will tell with the capacity and how many charges it gives.
micnur
18 Jul 16#113
Just arrived, branded REVIVA, EAN 5030578338613. Looks good :smiley:
dry
18 Jul 16#114
Received this morning. Seems ok- has a percentage remaining readout which is useful.
There's a bit of a high pitched whine coming from the bank whilst charging, but you tend to find this on most cheap power supplies. Battery bank not heating up at all which is a good sign!
mbugsy18
18 Jul 16#115
Which courier? Still not had any email saying if it's dispatched or not no cancellation email either.
mbugsy18
18 Jul 16#116
Mine has just arrived.
Harryisme
18 Jul 16#117
I don't have any issue like that though it seems to be very slow in charging, I've been charging it for over half an hour and so far it's only charged 2%, and even then it charged one percent, then got stuck and only moved further when I unplugged and replugged the charge cable, this is the issue with both batteries I ordered.
I just checked the little instruction manual and it says' charge time upto 17hours...WTF
tezray
18 Jul 16#118
mine arrived smaller than I thought it would be should be ideal left it on charge 88 percent had a shower came down same 88 percent slow charger but would leave over night to charge anyway
simate
18 Jul 16#119
UPS, go to your cpc account and the info can be found there such as the tracking number.
simate
18 Jul 16#120
Got mine too. Also 88‰ charged. It's been charging for 20 mins, its now 90%. I'm using my tablet charger.
I don't know what's going on with mine, though it could be the unit is just slow, it does say 5v 1a for input, so it's going to be slow no matter what charger we use. Good thing I didn't order more than a couple of these, they seem good for an emergancy but for daily use they take too long to fully charge.
To think my nephew complained about the three hours it takes to charge the Mii battery bank I bought him.
simate
18 Jul 16#123
2hrs 20 mins later and its only got to 92% from 88%! :confused:
Harryisme
18 Jul 16#124
Wow the charge rate on this is really irratic, I went away for 90mins and when I came back both were charged from 8% to 99% maybe even 100 but the lack of the third display it will forever be 99.
whw
18 Jul 16#125
Got mine today too. So compact and weighty. Nice having the LED display, currently sitting at 85%. Too bad about the charging up rate everyone's been reporting, still, good enough for emergencies if it holds the charge.
spannerzone
18 Jul 16#126
Mine arrived today, when unboxed it was completely flat, showing 00 when plugging in a USB power cable... hopefully it'll be good once charged.
whw
18 Jul 16#127
Anyone else finding the led stays on when charging a device (eg smartphone, tablet)? Wish it didn't.
On the plus side it quickly pumps juice into my aging phone dropping its charge about 1% per minute on the 1A port.
Pab
19 Jul 16#128
Bought two of the 6,000mAh ones and they arrived yesterday. Both were at 85% charge out of the box. I'm running some tests on them at the moment to see how much charge they really provide.
joolt
19 Jul 16#129
Just got mine today, wondering if it's wonky - it said 88 on the display initially but as soon as I plugged it in it said 99 - it's been charging for about 6 hours now and as soon as I take it out of the socket the display goes back to saying 88 again :disappointed:
tezray
19 Jul 161#130
mine was funny until I used it to charge something then it started charging properly
sambartle_theone
19 Jul 16#131
I've just finished testing mine and got 7763mah out of it on its first full charge.. that's with a 2A constant load.. it can't supply 2A though.. I got about 1.7A max.
Not bad for the price about what I'd expect from a no name unit.
joolt
20 Jul 16#132
thanks - mine seems to be OK now too
spannerzone
21 Jul 16#133
I don't think it is 88 - I think it's analysing the battery and just showing all the LED segments on the display until it's worked out the state of the battery. Mine did this when plugged in then showed 2%
tezray
21 Jul 16#134
makes sense mine jumped to 92 percent after the 88 disappeared
tezray
21 Jul 16#135
Finally taken it out to see what it is like. I have a galaxy s7 edge went for a walk and had pokemon go running it charged my phone very fast nearly as quick as the quick charger it hasn't gone down on the battery level on the charger at all though but I am very happy with this charger
Pab
22 Jul 16#136
The 6,000mAh models supply just over 4,000mAh, which is inline with what the packaging says (it says they can charge a 1,250mAh battery 3 times = 3,750mAh). Very pleased with them so far, especially for the price.
Opening post
Cheaper than I could find elsewhere, even cheaper than int'l Ebay sellers.
CPC say 'unbranded' but its a 'Reviva'. See (my poor quality/dirty) photo (it was as-new when it arrived..)
I was a bit skeptical at the price but quality seems good.
Comes with adaptors for old iphone/ipod, microUSB, miniUSB. Came about 85% charged.
CPC free delivery over £5
CPC description:
Portable, high capacity 12,00mAh powerbank charger. Sleek and compact design with a gloss black finish.
Two full size USB outputs; simultaneously charge 2 devices
2.1A output (Output 2) is ideal for recharging tablets
Multiple charging tips cover most devices
Compatible with all standard USB charging leads
Integrated LED display shows remaining charge
Recharges via USB connection (charging time up to 17 hours)
Dimensions (HxWxD): 22x77x95mm
12000mah (687 in stock) £5.94
http://cpc.farnell.com/unbranded/pwrp12bkre/power-bank-12-000mah-reviva/dp/SB06200
others:
6600mah (695 in stock) £4.74
http://cpc.farnell.com/unbranded/pwrp6bkre/power-bank-6-000mah-reviva/dp/SB06206
2000mah (684 in stock) £2.34 (2quid!)
http://cpc.farnell.com/unbranded/pwrp2bkre/power-bank-2-000mah-reviva/dp/SB06221
Top comments
With order volumes like we get from HUKD we do unfortunately have stock run out quicker than the site reflects. We have explained in the past but it an easy way to explain it is this - there is one code left, 50 of you order it - we assign it to the fist order that hits our system and the rest unfortunately get a cancellation email. We are sorry about it, we work hard to try and stop it - but it does happen.
Using this code as an example (before someone says "but i ordered with x left") - we sold something like 850 of these in a morning. We have rules in place on high volume orders, new accounts, fraud holds based on some triggers etc. We basically have an element of manual work to clear orders, we do not allocate stock from the web to these orders until we pass these rules - what that means is, you may see 100 left in stock but we may have 120 orders "received" and progressing through. This is not normally an issue, except when we get end of line items being hit with demand.... like happens here.
So, we are sorry, we do our best to be as accurate as possible with stock but it's more likely to happen with HUKD hot products than a typical sale.
Hope that clarifies for everyone - especially those who have been disappointed with this one.
Ends up as £8.94.
Add one of these 10p items to get rid of it;
http://cpc.farnell.com/pro-power/m12grey1/m12-cable-gland-grey/dp/CB0862161
£6.06 total.
---
Cheers. Ordered one.
All comments (136)
Ends up as £8.94.
Add one of these 10p items to get rid of it;
http://cpc.farnell.com/pro-power/m12grey1/m12-cable-gland-grey/dp/CB0862161
£6.06 total.
---
Cheers. Ordered one.
this looks like the one
http://cpc.farnell.com/multicomp/cp-aa15-3-ca/cap-blue-for-cpbt-aa15/dp/SW03665
http://cpc.farnell.com/pro-signal/psg91198/lead-usb2-0-a-male-type-c-1m-black/dp/CS28708
http://cpc.farnell.com/pro-signal/psg91228/adapter-usb-type-c-male-micro/dp/CS29238
http://cpc.farnell.com/te-connectivity-amp/1586000-2/plug-housing-free-hanging-2-way/dp/CN17751
http://www.thinkofficesupplies.co.uk/StoreFront/Reviva-Premium-Power-Bank-12000mAh-Black-PWRP12BKRE-P-1360505#.V4hc_NwrLVM
Paid £15 for a 10000 mAH in the sale for one the other day from Tesco. Thought I'd share that with you guys.
Portable Power Bank 50000mah External Battery Charger For Mobile Phone iPad PDA
ITEM PRICE:
£10.59 although a little dearer now
http://www.ebay.co.uk/itm/50000mAh-Two-USB-Portable-External-Power-Bank-Battery-Charger-For-Mobile-Phone-/201486062149?hash=item2ee9815245
Totally don't need!
Stock is getting low now, only about 100 units left and they are going fast! However, there is "More stock available week commencing 25/07/16" apparently.
The reviews on Amazon for the 12,000mah Reviva are very positive (all 6 of them). There are four 5 star reviews and two 4 star reviews altogether. Definitely worth a punt at this price.
Other useful items worth adding to take the order above £6 are insulation tape and 100x cable ties which are about 20p.
Black Insulation Tape
White Cable Ties
Add this to your order as another option. Can never have enough iPhone cables :smiley:
I needed some capacitors (about a quid's worth) and had no reason to spend a fiver with CPC at the minute, so the two came together quite nicely :smiley:
Bought an ebay special 20,000mah solar charger
1. Charges a 2000mah batter max of 2 times
2. Solar doesn't work.
3. When plugged into the mains to charge, you get weird electric shocks.
Lovely.
no doubt this will be much better.
Just to let you know that this is now out of stock - Could you please expire?
Thanks
Tbf, I used to opportunity to pick up some car bits I've been meaning to order too.
Email states
"... Apologises but the item you have ordered is no longer stocked. We will cancel this order for you. Apologises for any inconvenience caused".
When I ordered they had 80+ in stock
With order volumes like we get from HUKD we do unfortunately have stock run out quicker than the site reflects. We have explained in the past but it an easy way to explain it is this - there is one code left, 50 of you order it - we assign it to the fist order that hits our system and the rest unfortunately get a cancellation email. We are sorry about it, we work hard to try and stop it - but it does happen.
Using this code as an example (before someone says "but i ordered with x left") - we sold something like 850 of these in a morning. We have rules in place on high volume orders, new accounts, fraud holds based on some triggers etc. We basically have an element of manual work to clear orders, we do not allocate stock from the web to these orders until we pass these rules - what that means is, you may see 100 left in stock but we may have 120 orders "received" and progressing through. This is not normally an issue, except when we get end of line items being hit with demand.... like happens here.
So, we are sorry, we do our best to be as accurate as possible with stock but it's more likely to happen with HUKD hot products than a typical sale.
Hope that clarifies for everyone - especially those who have been disappointed with this one.
Now my Pokemon Go addiction can go on for longer periods. I will find that Squirtle that keeps showing as close by, mark my work, same with that Abra.
Cancelled now saying no longer stocked :disappointed:
Scheduled Delivery:
Monday, 18/07/2016, By End of Day
Last Location:
Departed - Tamworth, United Kingdom, Saturday, 16/07/2016
There's a bit of a high pitched whine coming from the bank whilst charging, but you tend to find this on most cheap power supplies. Battery bank not heating up at all which is a good sign!
I just checked the little instruction manual and it says' charge time upto 17hours...WTF
https://www.amazon.co.uk/Reviva-Premium-Power-12000mAh-Black/dp/B00XBGNRGO?ie=UTF8&*Version*=1&*entries*=0
To think my nephew complained about the three hours it takes to charge the Mii battery bank I bought him.
On the plus side it quickly pumps juice into my aging phone dropping its charge about 1% per minute on the 1A port.
Not bad for the price about what I'd expect from a no name unit.