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View Full Version : multiplex Ln5014 Lipo charge rate?


JimClark
12-15-2005, 07:11 PM
I have a multiplex Ln5014 charger and the only problem I have with it is that for lipos you enter the MAH of the pack and then the charger determines the 1C charge rate for the MAH number entered. Well everything I read here says that 1C is the max but most are using the .70C to .80C charge rate. Does anyone know how to adjust the charge rate to a lower than 1C rate? Someone on the myltiplex tech support fourm suggested just inputting a lower mah rateing for the battery so for my 4200mah batteries I will need to input 3360mah to get it to charge my 4200 at .80C

Jim

Unbalanced prop
12-15-2005, 08:43 PM
Jim.............I hve no personal experience with that charger, but the suggestion on the tech support forum sounds right to me.

Doug

rcnerd
12-15-2005, 10:12 PM
0.7 X capacity yieilds 0.7C charge rate.


And so on......

JimClark
12-15-2005, 11:11 PM
My question is if I have the 4200mah battery and you tell the charger it is a 3360 to make the charge rate .8C will the battery get a full charge or not. I don't have lipo's to try yet and won't have them until Janurary.
Jim

0.7 X capacity yieilds 0.7C charge rate.


And so on......

rcnerd
12-15-2005, 11:17 PM
yes....unless the charger has a secondary timer shutdown for safety ( a coomon feature) and you go overtime.

falingtrea
12-17-2005, 12:37 AM
Looking at my instruction manual, it does not look like the LN5014 has a timer. It charges at constant current at a 1C rate until the pack reaches a specific voltage then switches to a constant voltage rate until the current falls below 100 mA. I believe it only uses the capacity value to calculate the max current. So setting the capacity to a lower value should work. FYI, unless you get an answer from user "Stevo" on the Multiplex/Hitec run forum site, you are not getting an official answer from Multiplex/Hitec USA.