battery problem

[PureEvil616]

So my friend has a CA-25 and has had it 3 or 4 years. It's been running the same battery (8.4V 1800mAh) the whole time. Now, even after a 4 hour charge, his gun won't fire. When he took it to Gearbox, it worked, but I think they used their own battery. Is it likely that his battery is just used up?

[headhunter]

yes, i would reccomend getting a 9.6v battery or a li-po(lithium polymer) battery. i would also reccomend a smart charger. and as most people on the forums think, switching to deans connecters is a must.

[PureEvil616]

what is mAh? what does it affect? would it be ok to put a higher mAh battery in the gun?

[headhunter]

what is mAh? what does it affect? would it be ok to put a higher mAh battery in the gun?

mAh is how long the baattery lasts on one charge.the higher the number, the longer it lasts. most people have at least two 1600 mAh batteries. they exceed 4000 mAh though

[ThatGuy]

I use 11.1v, 35-70c,5000mah
Put the biggest battery that fits in the gun.

[headhunter]

I use 11.1v, 35-70c,5000mah
Put the biggest battery that fits in the gun.

always make sure it's a lipo. more power in a smaller battery. it may cost around $10 more.

[theFlyingTrumpet]

mAh stands for mili-Amp*hours. Current multiplied by time. Upping the mAh of a battery will not affect your gun at all other than how long you can shoot. With higher voltages though you might want to upgrade to lower resistance wiring and a mosfet (which lowers the voltage at the trigger contacts so they don't burn and stop conducting electricity), but with 9.6v or lower you'll be fine. Even with 11.1v the gun will shoot fine for a while, then stop shooting when the trigger contacts get too burnt.

I have a 7.4v 5000mAh 20C constant/30C burst Lipo that I paid $20 for, and I go 2-3 solid days (~12-15hrs) of airsofting between charges and I'm sure I could go longer. Also with Lipos, the number with the "C" after it is the discharge rate. You will want to be careful with a Lipo that you don't let the voltage get too low because you can damage the battery and possibly yourself (when it bursts into flames). It's not like a NiCd where you discharge it and store it with no charge.

And those batteries that come with new guns are always garbage. Search eBay or Hobbyking.com or a similar store when buying a new one. Airsoft specific stores overprice their Lipos like crazy. Lipos are the way to go. You will have to buy a Lipo specific charger, but the benefits outway the $30 or so you'll spend on a charger.