Standard Wallwart vs Smart Charger for Li-Poly Batteries

[ubernoober1477]

i am using a bt50 battery (very similar to the bt41) and it takes a 12v in line.
the wall wart that i found outputs a 12v dc line with 1000mA behind it

i know that it wont play and charge the unit at once, but would it be ok to charge the batteries alone?

 

[Mako321]

you can't charge it with a wall wart. Those things just output power. A charger outputs a higher voltage than the battery(so it will charge) and then shut off immediately after the battery reaches the same voltage as the charger outputs.(I think)

 

[ubernoober1477]

shouldnt this board cut power when its done?
its what came with the batteries

 

[XCVG]

What is the battery from? DVD player batteries typically have integrated charging circuitry. Judging by the pictures, I'd say a 12V wall-wart is safe, but use a 12V REGULATED wall-wart. A smart charger probably won't work with that, because the integrated charging circuitry will confuse it and vice versa.

 

[snowpenguin]

Yes, that is basically the same battery/circuit I have, I charge mine with a regulated 12v 2.25 Amp wallwart. No need for a smart charger, just a regulated power supply. Heck, you could even build the power supply if you wanted to.

 

[ubernoober1477]

and thats what worked guys!
i thought about it yesterday, i was pretty sure this board was too big to be just a protection circuit so i tried it out.
i hooked up my multimeter to it and it stopped charging at around 8.4v (well the green light went off then)

i only have a 1 amp charger though, so i cant charge and play at the same time. ill wait till i get a separate charger then. how much is needed to run a ps1 screen and n64?

 

[Mako321]

about 2A.