NiMH batteries never seem to last even 2 years.

They take a charge, but the length of time they will produce power is maybe 1/2 to 1/3 of new ones.

AA and AAA especially.

Am I buying the wrong type ? How to get longer life from these, or any tips on another type of battery.

PS - this Forum was the closest I could find to pose this question

I feel your pain, brother. I have a draw full of knackered rechargeable toothbrushes that last for ever at home but no time at all here. The heat perhaps?

I've been using eneloop (Panasonic) for ages. Hundreds of charges, work very well. I do refresh them occasionally, then replace at 5 years.

 

Think you need a decent charger?

 

I've been using a La Crosse BC-700 for ~ 12 years; still going strong. Easily one of the best tech-ish purchases I've ever made.

 

Also been on the same rechargeable Braun toothbrush for ~ 6 years.

 

 

I use these, they last forever and are incredibly cheap.

I think @mtls2005 is right, you need a decent charger.

 

Use it or loose it..

I connect a cheap timer where you can charge 10 minutes every day (mechanical not electronic). So the many devices with batteries will last much longer, also NiMh from HamRadios.

Use this one - with both AA and AAA batteries of the same brand

Charger specs out OK with my multimeter - just seems the batts will not hold a charge any more

Edited May 30, 20215 yr by canthai55

Just did the AAA a week ago.

Put in my Gillette Fusion Power razor and they last about 3 days. Which is less than 10 minutes.

When new they would last 7-10 days easy.

Waterpik for travel the same. Charge them up fully, last about 3 days.

Same as above

How old are these batteries?

 

Can you tell if they are real? Or did you get a "deal" on them? "Duracell" is spelled correctly so that's a good sign.

 

Is this the only brand you use?

 

Maybe try a different brand. 

 

 

11 hours ago, mtls2005 said:

I've been using eneloop (Panasonic) for ages. Hundreds of charges, work very well. I do refresh them occasionally, then replace at 5 years.

 

Don't know if this is still the case, but....

 

 

Good idea to learn about the mAh specs of rechargeable batteries.