I want to charge my rechargeable batteries using LM317T.
Batteries 1.2V / 2500 mAh – Energizer.
I want to charge them at 0.1C that is 250 mA. I’m going to charge two cells in series.
I refered to the data sheet of LM317T.
**broken link removed**
1) If I adjust the R to give 250mA it will charge. But who knows the charging voltage there near the two batteries? Supply voltage is 6V.
2) If I use a 12V input voltage will it be harmful to the batteries. Because battery needs 1.6 x 2 = 3.2 V to charge minimum.
**broken link removed**
3) If I use this method I can calculate the correct voltage that is 3.2 V. But who knows the charging current?
4) What is that RS resistor?
5) Which circuit should I use to charge the two batteries? Do I need both constant current & voltage?
Thanks……
Batteries 1.2V / 2500 mAh – Energizer.
I want to charge them at 0.1C that is 250 mA. I’m going to charge two cells in series.
I refered to the data sheet of LM317T.
**broken link removed**
1) If I adjust the R to give 250mA it will charge. But who knows the charging voltage there near the two batteries? Supply voltage is 6V.
2) If I use a 12V input voltage will it be harmful to the batteries. Because battery needs 1.6 x 2 = 3.2 V to charge minimum.
**broken link removed**
3) If I use this method I can calculate the correct voltage that is 3.2 V. But who knows the charging current?
4) What is that RS resistor?
5) Which circuit should I use to charge the two batteries? Do I need both constant current & voltage?
Thanks……