Quote from: abhay1290 on March 25, 2011, 02:17:07 AM


which is nearly 0.95C.
I charge my battery for 8-10 hrs.

i used of 2 watts resistor for low heat emission.
1/2watts will do nice.


I need a feedback from kalyan sir, how can i get to know when the battery is fully charged? Or please suggest me to implement an indicator when battery is fully charged.
Im trying to add a LED for that but till now unsuccessful.

I think you mean 0.095C. At this rate the charger can be left on indefinitely. If on for 15 hours, the battery will be fully charged even if started from a fully discharged state. There is no need for any indicator of "fully charged" status, which, in any case, would not be simple to implement.

Use of a larger rating resistor will NOT reduce heat emission. According to your measurements, the dissipation in the resistor is a fraction of a watt and a 1/2 watt one will do quite nicely.

Can any one help me in getting a ready made battery pack..... [ as the ones futaba provides with Rx and Tx]

they are connected by tacking not by solder..... and give a long life and are reliable if properly cycled .... looking for Ni-cd ....
4.8v 700mah-1000mah.....
9.6v 700mah-1000mah

please help...

can call me on 9738382454.....

yes sushil sir,
"0.095C" is what i meant..I was a a bit tensed due to exams..