So whats the go with the mathematics of these chargers , they look like the bee's knee's :-)
If the battery to be charged is 850mah (a BL5C) 3.7v , and one has 2x18650 at 2400mha each in parallel? which is 4800mha total and a converter efficiency of maybe 80%? (a guess) and a recharge of 110% or 120% or so does that mean around 3 recharges? , its confusing for me so anyone with practical experience like to say , TIA.
Also , those 2x AA types , are they any-good , as in the way they work , i am aware that there is probably only one recharge , but out from mains power or a extended mains power out and since AA's are everywhere or one might have a box full of lets say Lithiums for example , i might actually like those types , any thoughts or experience also please .
This thread has been a good read imo