Charging a 2200 AA x 4 rx pack?

[Sambuka]

Hi there

I friend gave me a rx pack for powering FBL units during setup. It has 4x Turnigy 2200mah AA battieres in it. The Rx pack has a servo lead off it and I have a charger with a servo adapter.

I've never charged nimh batteries before, only lipo's, Is anyone able to give me a quick charge rate they could suggest for 4 x these batteries ?

http://www.hobbyking.com/hobbyking/s...y_to_use_.html

Btw I have a standard 50 watt balance charger with standard firmware from most of those chargers.

Thanks for the help,

[desertstalker]

Absolute maximum 2.2A, but i would go with 1.1A for longevity. Unlike LiPos NiMH do not handle fast charge rates at all well.

[Sambuka]

I'll try that lower rate. Thanks very much

[The WoodCrafter]

I always thought the correct charge rate for NiMH were 1/10C.

[desertstalker]

Originally Posted by The WoodCrafter

I always thought the correct charge rate for NiMH were 1/10C.

Thats an overnight charge rate, and pretty safe for overcharging, if you have a peak detection charger (like a lipo charger can do) then you can safely go faster with the modern cells. I charge all my AAs at 1/2C (for camera flashes mainly) and easily get a couple of hundred cycles on them.

So yeah if using a dumb charger 1/10C is where you want to be (like in a TX) but a smart charger can go faster since it wont overcharge the cells.

[The WoodCrafter]

Dumb charger, yup that's how I charge mine.