hi folks
this is my first thread here but i know i'll get what i need.
first, i have to admit that i know nothing about circuit designing (i'm a doctor!), but i'm pretty good at just building them.
now here's my thing:
i got four Sony NiMH 4300mAh batteries and was intending to use my charger to charge them (it came with four 2100mAh NiMH batteries), BUT... it couldn't handle them: it read as fully charged but when i put'em in my camera it reads as empty.
so now what i need is a circuit diagram for a smart charger that can charge these batteries (4300mAh) in ca. 4 hours, 2 cells at a time. i could use a standard AC 500mA adapter, but what i exactly need is some modification to stop charging when (really) fully charged (make it smart ).
PS i'm in Egypt and some of the components in the USA may not be available, so whenever possible, please choose common components.
Thank you for the concern and the thoughts.
Ahmed M.Mashhour
this is my first thread here but i know i'll get what i need.
first, i have to admit that i know nothing about circuit designing (i'm a doctor!), but i'm pretty good at just building them.
now here's my thing:
i got four Sony NiMH 4300mAh batteries and was intending to use my charger to charge them (it came with four 2100mAh NiMH batteries), BUT... it couldn't handle them: it read as fully charged but when i put'em in my camera it reads as empty.
so now what i need is a circuit diagram for a smart charger that can charge these batteries (4300mAh) in ca. 4 hours, 2 cells at a time. i could use a standard AC 500mA adapter, but what i exactly need is some modification to stop charging when (really) fully charged (make it smart ).
PS i'm in Egypt and some of the components in the USA may not be available, so whenever possible, please choose common components.
Thank you for the concern and the thoughts.
Ahmed M.Mashhour