J JoeWawaw Member Mar 25, 2013 #1 Hi, i want to charge a 3.7V aa battery with a 5-6V (although i could change the value if needed) solar panel, but i'm not sure about the circuit. could anyone explain me it? Thanks
Hi, i want to charge a 3.7V aa battery with a 5-6V (although i could change the value if needed) solar panel, but i'm not sure about the circuit. could anyone explain me it? Thanks
J JoeWawaw Member Mar 25, 2013 #3 i was thinking li-ion, but any battery type really, so long as it's 3.7V, i don't need too much charge capacity either
i was thinking li-ion, but any battery type really, so long as it's 3.7V, i don't need too much charge capacity either
C crosslakeguy Member Mar 30, 2013 #5 you can buy a "step down" converter for about $3.50 us on e-bay...... buck converter step up too a little more
you can buy a "step down" converter for about $3.50 us on e-bay...... buck converter step up too a little more
languer Active Member Mar 30, 2013 #6 For NiMh or NiCd take a look at https://www.electro-tech-online.com/threads/nimh-battery-charger.133729/
For NiMh or NiCd take a look at https://www.electro-tech-online.com/threads/nimh-battery-charger.133729/