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Change load select after Golden Cycle

Pierre Le Gargasson
Intellectual 260 points
Other Parts Discussed in Thread: BQ27510-G3

Hi, I use BQ27510-G3 with a Golden Image. TimeToEmpty log shows a straight line but too high at the beginning of the discharge (+40 min over 6h) to end at a good 0 min. In result, TimeToEmpty minute is faster than a real minute.

I got this result with load mode = 1 (constant-power) and load select = 3 (current x voltage). I tried to change load select = 1 (average discharge power) with following commands: Unseal gauge => load Golden Image .senc => change load select => reset => IT enable => seal.

After test, TimeToEmpty has the same behaviour. Do I need to perform a new Golden Cycle with load select = 1 or the problem is elsewhere ?

Regards, Pierre

  • 0
    Intellectual 260 points

    Hi, after some tests, constant current and constant power have the same results.

    I have a perfect TimeToEmpty if I apply 0,9 ratio : Good TTE = 0,9 x TTE

    As I charge my battery to 4,1V, I think there is a link with the ratio. Could someone tells me which register I have to change to reach a perfect TTE without ratio ?

    Regards, Pierre