A basic solar battery charger will charge AAA, AA, C, D and "gum" size batteries, 2 at a time. Charges at maximum charge rate of 160mA in full sun.
Meter shows strength of the solar charging and approx. number of hours to charge. As an example 2 AAA 900mA NiMH batteries will charge in about 5-6 hours of full sun.
Charges NiMH and NiCd rechargeable batteries only. Do not use with rechargeable alkaline batteries.
Note: We do not really suggest using this solar charger if you are using C batteries or D batteries as their high capacity results in a very slow charge.
Universal Solar Battery Charger With Meter