Standard chargers:
1. You will need a charger that has a higher voltage output rating
than the battery you plan to charge.
2. Most standard batteries are 8.4v; it is recommend that you use a
9.6v charger. Anything higher is not recommend.
3. mAH on the charger is the output of milliamp per hour. This
is the amount of power that will flow into battery given no
resistance. This number does not have to be higher than the
battery's mAH rating. The higher the rating on the charger,
the faster it will charge the battery. for Ni-MH batteries,
you do not want to have an output higher than 2 times the mAH rating
of the battery.On a
standard charger use the following:
X = Battery's mAH capacity rating.
Y = Charger's mAH output. Z = Total charge time in hours
( X / ( Y * 1.5 ) ) = Z
Z * 4 = # charging intervals
Make sure to have a 5-10 minute
cool-down time between charging intervals.
On a pulse charger: Amp setting
must not exceed 2 times the mAH capacity rating.
Note: 1000mAH = 1 Amp.
Other battery info:
Ni-MH batteries do not have the memory problem like the Ni-CD;
however, they are more heat sensitive. Charging Ni-MH
batteries should be done in segments of 15 minutes intervals.
If you have an automatic charger, be sure to read the instructions
to make sure it is compatible with Ni-MH batteries. Not all
chargers will charge a Ni-MH battery and some can even damage or
destroy them. |
