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kudykam · September 23rd, 2009, 17:30

Hello again,
there is one thing I am struggling with. My Sanyo 9,6V 3300mAh battery.
After I full charge it and leave it be over night, it discharge itself, so the motor wont spin even though it tries (you can hear click sound). It seems to be quite strange. After I plug it in the charger for few minutes, than it is able to spin the motor. My charger is TLP Fuzzy Logic Expro
Also when I am charging the empty battery charger stop itself for about 30 minutes indicating that battery is charged, after I plug it again it continues with charging for another 30-60 minutes. I have to do that approx 4 times until the charging period shortens to less than 1 minute…
I don’t know where the problem is , battery and charger is 1 year old and very rarely used.

Update:
I was reading through the forum and found one topic where has been said to charge new batery with 0,1C, If I understand correctly it means to charge new battery with 3,1V (in case of 3300mAh). I never did this. I always charge with 1,2 V.
Maybe I could try to deep cycle it with 3,1 V. Hopefuly it will wake up...

September 23rd, 2009, 17:30	#35
kudykam Trader rating Join Date: Aug 2009 Location: Czech Republic - Europe	battery trouble Hello again, there is one thing I am struggling with. My Sanyo 9,6V 3300mAh battery. After I full charge it and leave it be over night, it discharge itself, so the motor wont spin even though it tries (you can hear click sound). It seems to be quite strange. After I plug it in the charger for few minutes, than it is able to spin the motor. My charger is TLP Fuzzy Logic Expro Also when I am charging the empty battery charger stop itself for about 30 minutes indicating that battery is charged, after I plug it again it continues with charging for another 30-60 minutes. I have to do that approx 4 times until the charging period shortens to less than 1 minute… I don’t know where the problem is , battery and charger is 1 year old and very rarely used. Update: I was reading through the forum and found one topic where has been said to charge new batery with 0,1C, If I understand correctly it means to charge new battery with 3,1V (in case of 3300mAh). I never did this. I always charge with 1,2 V. Maybe I could try to deep cycle it with 3,1 V. Hopefuly it will wake up... Last edited by kudykam; September 24th, 2009 at 09:36..