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I did a search and couldn't find this being posted, although I thought I'd seen something on it before. If there is a thread, point me to it -- if not, "jump in"...
I've seen a trend for some time now with my dead shorted GP 3300's (4-cell Oval)... When I charge them on my Turbo 35, they ALWAYS "peak" with charge time of 2719 seconds (5 amp charge)... I never thought much of it, although it was pretty weird, because I never had a problem that I related to that... I "always" re-peak right before my race, and things have always been fine...
Until...
Saturday night, getting ready for my main, I timed my charge about right, so the battery would be 'hot off the charger' for the race... strapped it in, went out and the car was "off" by 1-2 tenths -- really a BUMMER! After the race, everything checks out just fine... I cycled the pack and the numbers are as good as ever... I dyno'd the motor and the numbers are what you'd expect after being raced (still very close to "fresh" numbers)...
Then it dawned on me... I don't remember RE-peaking the pack for the main. (Remember the perfect timing I spoke of...)....
Is it possible that there IS a charge limit on the Turbo 35, and I didn't get a GENUINE "peak" on my pack...?
HELP! Your thoughts and comments please....
PS: FWIW -- After the race, when I discharged the pack, the voltage numbers were a "little" off (about 0.15v for the pack) -- not much, but it amounts to about 3-4%, and in Oval racing, that matter... What tripped me on the charge limit thing is that, when I cycle my packs, I do two (2) peaks prior to the discharge for the cycle... This would "hide" a charge limit on the first peak and explain why the pack cycled "normally" at home after the races...????
I've seen a trend for some time now with my dead shorted GP 3300's (4-cell Oval)... When I charge them on my Turbo 35, they ALWAYS "peak" with charge time of 2719 seconds (5 amp charge)... I never thought much of it, although it was pretty weird, because I never had a problem that I related to that... I "always" re-peak right before my race, and things have always been fine...
Until...
Saturday night, getting ready for my main, I timed my charge about right, so the battery would be 'hot off the charger' for the race... strapped it in, went out and the car was "off" by 1-2 tenths -- really a BUMMER! After the race, everything checks out just fine... I cycled the pack and the numbers are as good as ever... I dyno'd the motor and the numbers are what you'd expect after being raced (still very close to "fresh" numbers)...
Then it dawned on me... I don't remember RE-peaking the pack for the main. (Remember the perfect timing I spoke of...)....
Is it possible that there IS a charge limit on the Turbo 35, and I didn't get a GENUINE "peak" on my pack...?
HELP! Your thoughts and comments please....
PS: FWIW -- After the race, when I discharged the pack, the voltage numbers were a "little" off (about 0.15v for the pack) -- not much, but it amounts to about 3-4%, and in Oval racing, that matter... What tripped me on the charge limit thing is that, when I cycle my packs, I do two (2) peaks prior to the discharge for the cycle... This would "hide" a charge limit on the first peak and explain why the pack cycled "normally" at home after the races...????