Dewalt 36 volt batteries

[OneEye]

If cared for correctly, the Li-Ion packs you purchased should serve well.  2,000 cycles would be too much to expecte out of Li-Ion however.  Remember not to store them for long periods of time at full charge or near full discharge, the chemistry tends to eat itself under these conditions.  Li-Ion has the greatest longevity if keept between 30% - 70% state of charge.

LiFePO₄ is the new kid on the block, with a lot of hype to go with it.  The LiFePO₄ is overpriced like the iPhone when it was released.  Hopefully over the next year or so the price will slide by about 25%.

Or maybe the DeWalt service center in Fresno will start delivering damaged packs to mustangman by the truckload instead of paying to ship and recycle them.  Then we could get packs from him for say $15 each.  If 2 out of 3 cells are good that comes to less than $25 per pack

One can always hope.

[OneEye]

esource,

You may want to tinker with the low voltage cutoff on your controller anyway.  According to the specs you posted your pack cutoff is 26V.  Unmodified, the goldenmotor controller will cut out at 31.5V.  pdonahue posted the equation and resistor locations for adjusting your cutoff voltage in the "cutoff voltage" thread.  It shouldn't be too dificult to set up.

[mustangman]

 Sorry no luck yet, probably because there is not too many out in the field yet! Patience grasshopper, we will soon be rewarded for our efforts!!