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-   -   Extending Battery Life (https://www.rcuniverse.com/forum/e-flight-power-sources-126/8049809-extending-battery-life.html)

Hatty 10-14-2008 09:06 PM
Extending Battery Life
 
This isn't really geared towards RC flight, but is about Li-Pos in general.

Is it best to wait until your Li-Po is completely drained (but still within the voltage limits) before recharging, or should you recharge your battery at every opportunity you get?

I know that in the past, Ni-Cad and NiMH batteries benefited the most from complete charge and discharge cycles (Ni-Cads needing this and NiMH liking this). But, with todays new batteries, is it still the same?

I would like your opinions, but what I am really looking for is test data or some kind of proof on a reliable site.

Thanks

DaveFlynn 10-14-2008 10:12 PM
RE: Extending Battery Life
 
The fully discharge thing only applies to NiCd. Any others you can charge whenever.

garylynn 11-11-2008 10:06 AM
RE: Extending Battery Life
 
lipo 's have no memory but do not discharge to low, that could damage them

-pkh- 11-11-2008 11:30 AM
RE: Extending Battery Life
 
Check out this link:

http://www.batteryuniversity.com/parttwo-34.htm

Summary:
LiPo packs prefer partial discharge/charge cycles to deep cycling
Long term storage charge level should be about 40% full charge level

Stuntguy13 11-11-2008 01:28 PM
RE: Extending Battery Life
 
For electric control line stunt were the batteries are pushed for the whole 6min flight it has been found that by sizing the LiPoly pack so that you pull out no more than 80% of the capacity (i.e. 4000mah pack draw out a max of 3200mah) you will get max life.

Best, Dennis

Rodney 11-13-2008 10:43 AM
RE: Extending Battery Life
 
ORIGINAL: Hatty

This isn't really geared towards RC flight, but is about Li-Pos in general.

Is it best to wait until your Li-Po is completely drained (but still within the voltage limits) before recharging, or should you recharge your battery at every opportunity you get?
Recharge at each opportunity.

I know that in the past, Ni-Cad and NiMH batteries benefited the most from complete charge and discharge cycles (Ni-Cads needing this and NiMH liking this). But, with todays new batteries, is it still the same?
Neither NiCad nor NiMh need discharging before recharge. NiCad memory is pretty much an old wives tale that refuses to die.


I would like your opinions, but what I am really looking for is test data or some kind of proof on a reliable site.
www.rcbatteryclinic.com is one of the better and more reliable sources for battery info.


Thanks


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