|Ian Whittaker||21/11/2020 16:12:19|
|82 forum posts|
I’m after testing my batteries for a couple of reasons - one, to test and establish the condition of two new (cheap) lipos I’ve just bought, and two, to see the state of my current ones. My charger has a Lipo discharge facility, at 10W. The cut off point is 3 to 3.3v per cell. Surely this is far too low? As I’m using 5000mAh six cell packs I’m looking at at 10 hours or more for the discharge anyhow (less than 0.1C).
|Tom Gaskin 1||21/11/2020 16:23:08|
|50 forum posts|
Certainly charge and use is the more convenient option. 3 volts per cell is fine for the cutoff voltage.
|Frank Skilbeck||21/11/2020 17:15:07|
4922 forum posts
In some respects look at the capacity of a new Lipo isn't a great measure of how good they are, at a low discharge rate they could have a good capacity, but put them under load and the internal resistance can cause a significant voltage drop across the Lipo and heat build up.
Better to use a watt meter and test them under a real load, or onboard technology which measures current, mah and pack voltage, the Unisens E sensors are great if your radio supports them.
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