Mod a charger? Lower Amp output?

Maxximum Attack · Post by **Maxximum Attack** » Thu Jun 14, 2007 9:12 pm

I guess this one is for ph2t and those others who are electronically inclined.

I read a while back that the micro-T can be charged using a hobby charger. One that charges at a fraction of an amp. My hobby charger only goes down to 1A. I know resistors are used to dumb down voltage, but is there anything I can install similar to an inline resistor to lower my output amperage?

My charger has a tamiya connection, it also has an extra wire with a corresponding connection so that I can use another connection type without harming the charger. I'd like something to install onto that "bridge" to lower my amps to a propper level to charge my incoming micro-T.

BilboBaggins · Post by **BilboBaggins** » Thu Jun 14, 2007 9:16 pm

I cheated and bought the Dynamite Prophet Plus LCD. It can charge at .10 amp.

Maxximum Attack · Post by **Maxximum Attack** » Thu Jun 14, 2007 9:22 pm

No cash, got the truck in a trade.

betty.k · Post by **betty.k** » Fri Jun 15, 2007 4:29 am

a resistor is your best bet.

you'll want a big 5w one too, looks like a white eraser with 2 wires sticking out. it will get hot too, make allowances.

measure the current inline, eg: so that the multimeter is part of the curcuit.

crazydave · Post by **crazydave** » Fri Jun 15, 2007 9:15 am

betty.k wrote:a resistor is your best bet.

you'll want a big 5w one too, looks like a white eraser with 2 wires sticking out. it will get hot too, make allowances.

measure the current inline, eg: so that the multimeter is part of the curcuit.

Hey Maxx, you still got that MSC that came with your Tamiya car? That should have a couple resistor bars like Betty is talking about.

I remember when I got my first RC way back when, and I didn't have my charger yet. I went over to a buddy's house, that used to race RCs when we were kids and he broke out with this resistor wire to charge it with. It was a really super thin piece of wire, like the kind used to wind a motor's arm, so it created enough resistance to hook my battery directly up to a car battery. Same concept, so I know its feasable.

Maxximum Attack · Post by **Maxximum Attack** » Fri Jun 15, 2007 2:54 pm

I'd have to look for that MSC, I'm pretty sure I trashed that

. But I do have a small box with stuff in it.

betty.k · Post by **betty.k** » Sat Jun 16, 2007 3:00 am

good call dave, that resistor would be perfect as it's like 2 or 3 resistors in one.
one wire will be ground and the other 2 or 3 will offer different levels of resistance. so you will have a few current options when charging.