Solar phone charger

[Binnie]

(13 June 2013, 13:44)Prepper1 Wrote: ebay states for a mains iphone charger that the output is Output voltage: DC 5V +/- 5% 1000mA
8x1200 mah aa batterys should give you 9600 mah which i believe is just short of 1 amp
Now I'm no expert, but if I were you, thats the way Id do it.

Hmmm, just a quick not on batteries....


if you are joining the batteries in parallel, (if you were to lay the AA's side by side and all facing the same way, connect all the + together, and the same for the -) you'd get a 9600mah capacity 1.5v battery

if you lay them in a line, so as you say, you'd end up with 12v, you'd only have a CAPACITY of 1200mah


to convert mah it amps, divide by 1000.

so you'd end up with a 12v 1.2A capacity battery.


to know the discharge rate you need the C rating. (most NiMh rechargeables can put out 5c without issues)

you multiply the C rating by your capacity, and get a theoretical discharge rate

in the case of these batteries 5© x 1.2(A) gives you a theoretical maximum discharge rate of 6amps.

that fits well within your 1A or so required to charge the phone


Sorry if i bored anyone, i just know a little bit about batteries