Recharging LiPo batteries

[MaveriK]

[h=1]Trying to set a profile up for my batteries but amps and volts are not my strong point and i dont want to set fire to the house.

 

My batteries are these :- http://dinogylipos.com/3-cell-65c/32-1300mah-3s-65c[/h][h=1]

And i am setting them up with a imax B6ac v2 charger and want to store a charge method, here are the settings and my answers

 

Battery type Lipo Happy with this

Voltage and cells 11.1v 3C Happy with this also

Charge current 3.9 amps Assuming i am charging at 3c

Discharge current amp 84.5 amps Assuming this is 65*1300= 84500???

Discharge voltage ????? I have no idea what this relates to other than the cut off voltage of 3.4v +/cell

Terminal voltage ????? See above??

 

Sorry if this sounds stupid, i will continue to search the web but i am more than eager to get out there and crash alot.[/h][h=1][/h]

[ianhid]

You can generally charge a LiPo at 1C rating safely, if you can safely go higher it should be printed on the battery but may shorten the life. So for your batteries that'd be 1C = (mAh number)/1000 = 1.3 Amps at about 12.4-12.6V. They can discharge much faster than that, the problem is managing heat buildup so you don't get runaway and a fire. Note that they can catch fire even if not connected to the charger if the cell has properly overheated. Thermal runaway is fun!

 

A little surprised the charger you've got doesn't have a built in profile for LiPos that just takes an mAh rating to set it up.

 

http://www.instructables.com/id/Lithium-Polymer-Etiquette/step5/Balance-Charging-Setup/ (The whole of that guide is pretty useful.)

[creative]

You have pm.

 

The charger is one of the easiest to use... and I have one. Dont charge at more than 1c on a balance charge (1.3a) simple as that. Dont worry about the discharge etc so leave them as is when setting it up.