On Thursday, October 11, 2012 3:39:55 PM UTC-7, wrote:
The Lithium Phosphate batteries even use your existing chargers. Jim ******** This is correct. I bought a K2 w/o the BMS this year. I already owned a few Battery Tender Jr. chargers, so I emailed K2 and Battery Tender. Both replied the charger was fine for a K2. I was concerned about the lack of BMS and bought a K2 charger to conduct my own tests, so if anyone wants this $50 charger at a discount, let me know. ~Bruce

hmmm, I wouldnt use existing/old style chargers on LifePo or A123. You really should use a balance charger which monitors the voltage of each cell during charge. This will help avoid ruining your nice new battery. I presume the K2 has a balance plug?