Which NiMH rechargeables to buy
and which to avoid



 

Tested Jan/Feb 2009

Good AA cells
Make Size Type Capacity Cost
Duracell AA Normal 2460mAh £1-38
Fujicell AA Normal 2130mAh £1-87
Vapex AA LSD 1980mAh £1-31
Sanyo AA LSD 1910mAh £2-50

Clearly one buys Duracell Supreme for maximum capacity
and Vapex Instant for ability to hold charge
LSD = "Low self-discharge" (i.e. will stay charged for weeks)


 

 
Good AAA cells
Make Size Type Capacity Cost
Duracell AAA Normal 950mAh £1-75
Vapex 1100 AAA Normal 900mAh £1-10
Vapex Instant AAA LSD 800mAh £0-97

Duracell Supreme have maximum capacity
Vapex 1100 are perhaps better value
Vapex Instant are cheaper and should hold their charge better
LSD = "Low self-discharge" (i.e. will stay charged for weeks)


 

 
Avoid these very bad AA cells
Make Size Type Capacity Cost
BTY AA Normal 450mAh £0-67
"Green" AA Normal 450mAh £0-56

Half the batch of BTY cells were dead on arrival!
(N.B. An earlier purchase of BTY AAA cells were excellent, but these were dreadful!)
The "green" cells were reliable, but who wants 450mAh storage (2600 claimed!).



Me? - I will be buying Vapex Instant for nearly all purposes in future.
They are a low self-discharge type, sold at a good price.
The UK website is at www.vapextech.co.uk

Added 31 May 2014....
My Eneloop batteries have a low failure rate.
The Vapex have had quite a few failures.
Buy them at BatteryLogic.

Also I have bought myself a really good battery charger
and I have thrown away the chargers I used to own!