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Discussion Starter · #1 ·
Ok here goes been racing my 4200's for about 8 race days once a week use
Charge at 6amps. race then discharge to 4 volts race day then discharge on tray.
Batteries went flat in every race. good fro about 3 minutes then big drop of in lap times. Motor was fresh and recut and new brushes.
Thnaks Dan
 

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4200 battery care

just my method that seems to work tray them before charging,race with them and then dis to 3.6 reequalize and put 300-400seconds into pack to let sit for the week
 

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You need to put juice back into them before storing and are these 4 or 6 cell? I put 8 minutes back into them and let them sit until I am ready to run them - then I tray them to 0.9 volts and let sit for 5 minutes then juice them. Peak volt detect at 0.03 - higher I was getting the packs really hot.

If 6 do not take them down to 4 volts - killing the battery off.

The newer packs today that I have ran perform a lot better with matched cells - when not matched they tend to vetn and overheat which kills them.

Hope this helps some.

mike

Clark-Who Racing​
 

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Battery maintainance is SO FAR over marketed it's rediculous.

Equalization is bringing each individual cell down to the same voltage !

I won't get into which tray , this and that.

Different voltage points for equalization will give your batteries slightly

different characteristics .

Even the old low voltage trays won't cause any harm if used properly.

Comment for those who Dead-short ,,,,, after you bring your pack to 0.0

per cell and then put a wire from neg to pos. ,,, check your individual cell

voltage when removed from tray ?? That's where most the harm is done

as some cells will be in a neg. voltage state.

SAVE YOUR MONEY FOR BATTERIES , FORGET THESE OVERPRICED DISCHARGE / EQUALIZERS :thumbsup:
 

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negative voltage state you say? ya gotta flip the wires around on your volt meter for every other cell or it will read negative. lol
 
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