charging lipos

[jimma]

ive just received my 2s parallel charging lead to charge the battery for my mcpx bl, and also a lead for charging battery's for my 450x, im a bit confused on how many amps i should be charging them at.

Any advice would be great

[ltaylor88]

say one battery is 250mah that means to charge it at 1c(safe) you would apply 250mah current.
if you have two batterys then it would be 500mah
three would be 750mah and so on....

[parksy]

mcpx bl batts

ive just received my 2s parallel charging lead to charge the battery for my mcpx bl, and also a lead for charging battery's for my 450x, im a bit confused on how many amps i should be charging them at.

Any advice would be great

Hey Jimma, if they are 200mah batteries, you want to charge at .2 amps, not sure how many batteries you have or how many your parallel charge lead will take, if it can charge 6 at a time then add them together >> .2 + .2 + .2 + .2 + .2 + .2 = 1.2 amps. It isn't a massive charge rate but they aren't massive batteries so shouldn't take too long, usually about an hour, depending on charger.

[jimma]

Cheers guys, also is it possible to discharge lipos in parallel?

[cjcj1949]

The main thing is to make sure that the volts are the same when connecting batteries in parallel. Especially lipos. They are very good at keeping their volts constant, but when connected in parallel they all try to keep the same volts and so large currents flow from the high volts batteries to the lower volts. This results in high charge rates and discharge rates. High charging is the biggest problem and we all know that high charging reduces battery life.

You can discharge in parallel. Discharge rates are usually about ten times as great as acceptable charge rates. There isn't much benefit in discharging in parallel as most chargers don't discharge at a high current.