7dayshop AA HR06 High Performance Ni-MH Rechargeable Batteries 2900 £21.99 - Mega Value 16 Pack in Cases
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7dayshop AA HR06 High Performance Ni-MH Rechargeable Batteries 2900 £21.99 - Mega Value 16 Pack in Cases

17
Found 13th Dec 2017
Just ordered these as they will get here in time for Christmas. Use the code SIXOFF16 to save 6 quid. You even get 2% with quidco. Delivered in 1-2 days.
They are larger capacity than usual ones and so hopefully will power the WowWee R.E.V. cars that I have bought from the link earlier today for a reasonable length of time. I have used 7dayshop batteries for years and they have never let me down, unlike the Eneloop that have failed several times.
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Bought 8 AA & 8 AAA, none will charge. Both sets give errors on 2 diff chargers.
I've recently had these batteries too and had issues with not holding charge. Contacted customer service and they have replaced. If these are also poor I'll avoid in the future
Bought loads never had issue. Must be faulty batc
pep4111 h, 27 m ago

Bought loads never had issue. Must be faulty batc


Same here, they have lasted longer than the duracell rechargeables I had before. And I think Which magazine rated these quite highly when they did their reviews.
Obligatory reminder that 7dayshop rechargeables have *heavily* exaggerated capacities. If you're looking for quality batteries on the cheap, look to Amazon Basics blacks.
Last time I bought these, they lasted between 6 months and a year and wouldn't charge very well after that. I was using each of them about once every two weeks on rotation for fairly high drain tasks, RC cars, etc. That was about two years ago, wouldn't buy again.
You would be better with the Lidl deal, 16 batteries would only cost you £12, plus there stay charged batteries that hold there charge for longer. hotukdeals.com/dea…265

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Edited by: "SOUTHWALES" 14th Dec 2017
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deleted176002
Have to agree with others not very good, use to charge then after a week next to nothing left in them when I wanted to use I have AAA green ones which are excellent and last weeks with a single charge should have sent them back but too late now over 2 years old binned them, also find Lidl AA ones crap.
Try not to fast charge any batteries - not good for them.
I ruined several and didn't even realize 'til I got a smart charger.
Edited by: "zzzz" 14th Dec 2017
does anyone knows how to measure the amperage left/full of a battery?? Been asking for years but the answer is always the same and that is not possible, any reasons why not?? how do they determine the amps at the factory stage?? there must be a way.
neroneuk1 h, 40 m ago

does anyone knows how to measure the amperage left/full of a battery?? …does anyone knows how to measure the amperage left/full of a battery?? Been asking for years but the answer is always the same and that is not possible, any reasons why not?? how do they determine the amps at the factory stage?? there must be a way.


The "amps" in a battery is not a meaningful concept, as it depends on what you are doing with it (whether you are drawing current or not). You probably mean Ah or amp hours (or for batteries usually mAh). It can be tested in the factory by charging then discharging it, measuring the current as a function of time then integrating (assumes voltage is fixed). Manufacturers vary how they do it, I think many measure total energy via voltage readings over a fixed resistor during discharge, then convert back to mAh.

Also if you drain batteries quite fast, you won't get the stated capacity due to the way they measure it - they usually measure the discharge over a longer time (10 hours) which gives a more favourable result than when done through a quicker discharge.
Edited by: "winstonmanc" 14th Dec 2017
neroneuk2 h, 20 m ago

does anyone knows how to measure the amperage left/full of a battery?? …does anyone knows how to measure the amperage left/full of a battery?? Been asking for years but the answer is always the same and that is not possible, any reasons why not?? how do they determine the amps at the factory stage?? there must be a way.


The full is easy with a smart charger in that it shows the amperage charged, with the not so smart just get lights.
zzzz11 h, 29 m ago

Try not to fast charge any batteries - not good for them.I ruined several …Try not to fast charge any batteries - not good for them.I ruined several and didn't even realize 'til I got a smart charger.


Which smart charger did you purchase ?
Thanks for the Lidl info, picked up lots of Tronic ones from Lidl in Ipswich (boy they look snazzy). I will be able to see which are better. You can never have too many with 4 kids and electrical items. remotes, xbox controllers, laser guns. I have the 7dayshop charger which works pretty well then if the batteries don't register on it I charge with a GP Recyko charger, both pretty old. Now I can charge them during the week and there should always be some available when they are needed.
dxx14th Dec 2017

Obligatory reminder that 7dayshop rechargeables have *heavily* exaggerated …Obligatory reminder that 7dayshop rechargeables have *heavily* exaggerated capacities. If you're looking for quality batteries on the cheap, look to Amazon Basics blacks.


Not true
7dayshop-Support24th Jan

Not true


Okay.

So, let's take this source for example: talkphotography.co.uk/thr…26/

Are you telling me that all those people are lying when they say that your batteries won't hold the advertised capacities? What proof can you offer that they can?
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