[terminator2003]

i have piranha charger and its for a pack of 5 x1.2 at 2800nimh i have set at 1.0 a and 3100nimh 10mvc and it takes 45 minute to fully charge but i am not shure that is the right settings so if anyone could help it would be appreciated thanks

[highroller]

For AA size batteries I use .50 to 1.00 amp charge rates with the detect set between .01 to .03 mv with 1/2 size and smaller the amp rate is .05 to .50. It will take longer for higher capacity batteries to charge to ensure they are you can check the voltage with a DVM. Voltage is normally 5.80 to 6.40 volts, higher than the actual rated cell voltage.

[terminator2003]

ok mine is set at at 10.mv/c so its to high

[terminator2003]

there is one thing i dont understand is in the book it say"s final charges 2300in mah and its suppost to be higher than my batteries at 2800 mah but its only at around 665 or so thinks for your help

[highroller]

If cells are in good condition and getting discharged to a good low voltage before recharging it will have an effect on the MH capacity when it reaches peak charge. Sub C cells generally charge higher than their rated capacity while AA charge a little below. The reason you are only getting 665MH of charge capacity is probably due to: 1. cells not discharged (still have more than 3/4 charge left in them) 2. cells going bad or charging at different voltage levels - causing charger to false peak(some cells may be reaching their peak voltage while others haven't). If these are AA size batteries use one lightbulb and a adapter to fit the plug on pack and discharge it - remove bulb as soon as it begins to dim. Allow pack to cool (2.5 hours) and try charging at .50 amps with .01mv cutoff.

[TJNMT]

high roller,

about dischargeing rx packs, on the this website it said to use a 1157 blub, which I bought but there are 2 contact points on the bottom of the blub does it matter which one I use??

http://www.rcnitro.com/rn/articles/gs_batteries2.asp

[baih]

use both contacts on the bottom.

[TJNMT]

Thank You very much

[born2rc]

Originally Posted by TJNMT

high roller,

about dischargeing rx packs, on the this website it said to use a 1157 blub, which I bought but there are 2 contact points on the bottom of the blub does it matter which one I use??

http://www.rcnitro.com/rn/articles/gs_batteries2.asp

I bet it is for high and low beams (or for the brakes)

It looks like from the picture that they used both.

[TJNMT]

I bought the blub but havent solder the leads yet. I am just wondering the bulbs are 12volt. Just wondering if that matters since the pack is at 6v??

[dilpickle]

6 volts will still light the bulb and discharge the pack just not as high of an amp draw compared to 12v.

[TJNMT]

Thank You for cleaning that up for me.