Powerex Battery Question

[PhotoXopher]

I guess I'm just looking to see if this is normal... I bought a set of 8 Powerex batteries and a Maha battery charger upon being highly recommended. The charger is awesome, however the batteries don't keep a charge if they aren't used. I'm finding myself having to remember to charge them just before I need them which is a real pain.

Is this typical? If so, I'm just going to go back to my old 'cheap' Duracell's and Energizers.

 

[table1349]

My recommendation a minute ago to a question on batteries for a flash unit.

http://www.thephotoforum.com/forum/...mendation-speedlite-430ex-ii.html#post1667088

 

[PhotoXopher]

Aha, so it sounds like the Powerex are probably as good as people say but they aren't designed to keep their charge like, for example, eneloop batteries (or my Energizer/Duracell's).

Thanks for the input.

Anyone else experience this with Powerex?

 

[Garbz]

Batteries are always cases where various features are traded off against each other. Not having a shelf life doesn't make batteries bad. You'd probably find they hold their maximum voltage longer over their discharge time, or that they have a physically larger charge capacity than others of the same chemistry.

The same goes into Li-Ion camera batteries. Those aftermarket batteries with larger charge capacities sacrifice long levity and can not be recharged as often before dying for good.