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Power supply/Adapter Question
Okay i've recently bpught an rc battery quick charger. the input on it just says 12-13.8v i do have a standard 110 to 12v @ 400mA Should the ma Matter? you can hook the battery up to a 12v battery in order to power it also. basicly i'm wanting to know if i could use my ac adaper to power it. Thanks in advance
Discussions
11 years ago
A quick charger with 12-13.8V input is designed to plug into your car's "auxiliary power socket" (aka cigarette lighter.) It is unfortunately unlikely (IMO) to remain "quick" if fed with only a 400mA wall wart; your aux power socket will supply 10+ amps. (there should be a spec somewhere for how much current the input needs.) (I've had generally bad luck powering car-powered things from AC. They tend to count on being able to draw "big amps.")
Reply 11 years ago
Hmm what about a 12v dc 2 amp power supply?
Reply 11 years ago
THat would be better. But some of the chargers I see out there consume even more than that. For instance, This hobbico dual charger will put 5A on each of two channels...)
11 years ago
can you please dumb it down a little. i'm kinda newb @ this kinda stuff. basically what i'm asking is will my ac adapter be able to put out the same specs as a standard 12v car battery? thanks
Reply 11 years ago
12 V is ok 400 mA limit may be too small its possible to estimate how much mA the charger needs from the V and mAH of the batteries it charges + how much time it takes to complete a full charge (from empty to full batteries) + the amount of batteries charged at a time
11 years ago
the current can be estimated from the voltage / mAH of the batteries it charges and the time it takes to charge