Battery question (charging and how run Li-Po in series)
#1
Battery question (charging and how run Li-Po in series)
Hi,
looking for some help, my Venom Pro charger manual advises never to charge a Li-Po over 1C charge rate but the Venom 7.4V 2S battery I have, has on it that the charge rate is 3C?
Also how do you run lipo batteries in series?
I have a 1/8 buggy and I want to use 2 x 2S batteries instead of a 4S. I've read that you cun run them in series e.g. one lead going from -ve to -ve and teh +ve go to the deans connector. Not sure how this is done as I would prefer not to use a "Y" harness. The batteries have the +ve and -ve round holes that you plug the leads into.
Thanks!
looking for some help, my Venom Pro charger manual advises never to charge a Li-Po over 1C charge rate but the Venom 7.4V 2S battery I have, has on it that the charge rate is 3C?
Also how do you run lipo batteries in series?
I have a 1/8 buggy and I want to use 2 x 2S batteries instead of a 4S. I've read that you cun run them in series e.g. one lead going from -ve to -ve and teh +ve go to the deans connector. Not sure how this is done as I would prefer not to use a "Y" harness. The batteries have the +ve and -ve round holes that you plug the leads into.
Thanks!
Last edited by Taman; 04-05-2012 at 03:10 AM.
#2
Tech Elite
iTrader: (25)
Hi,
looking for some help, my Venom Pro charger manual advises never to charge a Li-Po over 1C charge rate but the Venom 7.4V 2S battery I have, has on it that the charge rate is 3C?
Also how do you run lipo batteries in series?
I have a 1/8 buggy and I want to use 2 x 2S batteries instead of a 4S. I've read that you cun run them in series e.g. one lead going from -ve to -ve and teh +ve go to the deans connector. Not sure how this is done as I would prefer not to use a "Y" harness. The batteries have the +ve and -ve round holes that you plug the leads into.
Thanks!
looking for some help, my Venom Pro charger manual advises never to charge a Li-Po over 1C charge rate but the Venom 7.4V 2S battery I have, has on it that the charge rate is 3C?
Also how do you run lipo batteries in series?
I have a 1/8 buggy and I want to use 2 x 2S batteries instead of a 4S. I've read that you cun run them in series e.g. one lead going from -ve to -ve and teh +ve go to the deans connector. Not sure how this is done as I would prefer not to use a "Y" harness. The batteries have the +ve and -ve round holes that you plug the leads into.
Thanks!
To run batteries in "series" the + on the connector goes to the + on one pack. Then you take the - on the connector and it goes to the - on the other pack. Then what is left is a wire from the first packs - to the second packs +. This is "series" wiring. This increases the voltage (in this case double) and retains the same mAh.
Two 7.4v / 5000mAh packs in "series" will become 14.8v / 5000mAh
Two 7.4v / 5000mAh packs in "parallel" will become 7.4v / 10000mAh
Also make sure that you ALWAYS balance charge each battery separately.
Hope that helps.
#6
Tech Champion
12 guage (AWG) is usually enough.
#8
Tech Champion
Other than it’s a good idea to treat the 2 packs as a single pack throughout from new. If they differ any including due to different usage history one runs the risk of having one pack dump before the other, which may not be caught by the low voltage cutoff in time.
If you do use them independently, or replace just one, recommend being extra careful with run time, maybe use a higher LVC setting, etc.
If you do use them independently, or replace just one, recommend being extra careful with run time, maybe use a higher LVC setting, etc.
#9
#10
Tech Regular
iTrader: (7)
It used to be recommended that batteries not be charged above 1c because that is all they would handle. now they are making batteries with a much higher "c" rating and the improved technology is allowing them to be charged at a higher rate. in the case of some batteries, up to 10c or higher. i have had no issues yet charging my batteries at 3c (15 amps) as they state they can be charged at 5c, and 8c respectively.