I'm a little confused..losiXXXman wrote:So, i've got my first lipo and I'm experiencing some issues. I think the battery is seriously out of balance, so I'm trying to balance charge it... how long might a slow balance take at 1s on a 5000 battery thats fully discharged? I've heard that a lot of guys don't balance, as it takes a lot longer, and so my first couple cycles on the battery, I didn't balance. I'm clueless on this whole Lipo thing, so thanks for any advice...
You say that you are trying to balance charge at 1S.. Does that mean that you are trying to charge each cell individually..? OR do you mean that you are charging at 1C (C= Capacity) meaning at 5000mA or 5Amps..?
Personally I always balance charge my LiPo's.. When a LiPo cell (single cell or 1S) is fully charged its voltage should be 4.2 Volts DC, and the voltage should not exceed that 4.2V limit.. SO, for a 2S (2 cell) LiPo battery the fully charged voltage is 8.4 Volts.
When you are doing a regular or non balanced charge on a LiPo (without the balance lead connected) the only sensing that the charger can do is through the main battery connector.. What can also happen if your pack is out of balance, is that one cell may only charge to 4.0 Volts, and charge the other to 4.4 V, for a Total voltage of 8.4 Volts, meaning that one cell is being charged 0.2 Volts higher than it should be (i.e. overcharged), and this could result in the cell being damaged, or worse, the battery pack catching fire....
ALSO.. As I understand it, most LiPo balancers work by discharging the cell with the greater, or higher voltage at approx. 200 mA or 0.2 Amps throughout the charging process, and this is why that it often takes longer to balance charge..
Getting back to my first question regarding if you are trying to charge each cell individually, I would not recommend trying to charge your LiPo's cells individually through the balance lead, as the connector and cables on the balance lead simply are not rated to charge at much more than 200mAmps (0.2Amps).. The only exception to this statement is if you are using "Saddle" style LiPo batteries, that have 4 or 5mm Corally or banana style connectors..