http://talk.maemo.org/showpost.php?p...&postcount=657

Post by joerg-rw, currently working on jrbme that is replacement for closed-source bme, for HEN project.

He stated that 1W won't exceed 30% of battery capacity... Because all capacity is 5W, You can call it 5Wh if You want to count with mAh, but that doesn't matter

I link this only because joerg-rw is very respected community member, and maybe that will help sceptics to understand that our belowed BL-5J is beast capable of store high W values In fact, that citation is not needed, cause basic math skills tell you than when on both side of "=" you got same multiplier - h in this case - You can drop it by dividing both sides /h.

sorry to call basic math skills - i don't want to offend anyone, but I;m just running out of ideas how to prove basic things that has been proved by calculation itself...

BL-5J can deliver max POWER of 5 W (no matter of time which it was used) what is CAPACITY of 5Wh independent of voltage (theoretically, You can use transformer to obtain 5Wh with for example, 12V, in 0 power loss during transforming, what is of course theoretical only), or 1300 mAh at 3.7.

Power != Capacity

Capacity is constant (unless our battery degrade ;P )

10% of 5Wh battery is damn 0.5Wh, and using that 10% of capacity during 15 seconds is using damn 0.5W = 500mW in 15 seconds.

I don't know how to write it in simpler words.