battery mah question

[vladsokar]

What is a good mah lvl to have for an n64p. what is the max mah you should have? Thanks for any help.

[vladsokar]

Also can anyone sugest a good pcb to help prevent overcharging?

[thewise1]

mAh is milliamp hours, it's the capacity of the battery, it doesn't have a limit, it's kind of like a gas tank on a car, there's no real limit for it's capacity but it can get a little excessive. The n64 itself draws about 1 amp (1amp = 1000 milliamps) This does very if you have the expansion pak in, then it's about 1.2 amps. And this is not including the screen, if you use a psone screen and led mod it, it will be about 500ma more. So an N64 and psone screen draws about 1.7 amps and hour.

So now it just depends on how long you want your n64 to last. 3.4 amp battery will get you roughly 2 hours. Usually people use 4800mAh batteries. And make sure you get the right voltage, the best voltage for n64 is 7.4 volts.

About the protection circuit, if you buy a battery to open like a camera battery it should already have a protection circuit in it. If you buy it in parts like at batteryspace.com then you can buy the protection circuit from the same place. Just figure out which one you want.

[vskid]

You only need a protection circuit if you're using lithium batteries, and we need to know what batteries you're using to help you choose a protection circuit. The protection circuit is not a replacement for a good charger. The protection circuit will keep the cells from exploding (well, hopefully), but a smart charger will charge them correctly so they'll last longer.

[vladsokar]

I have a smart charger so i don't think that'll be a problem. I have a battery pack already but it's real heavy so i was going to look into something smaller or lighter. not quite sure what i'm going with yet though. thanks for the info guys.

[vladsokar]

i've been looking at batteryspace and some of the batteries are already prewired with a pcb, at that point i should be able to just twist the wires together and solder it to my power switch.

[Life of Brian]

Correct. If you can find batteries that already have a protection circuit at a good price, then go for it. Makes things easier.