Step 2 → Choose Internal Balance (Sentinel) or External Balance (EXB)

  • LiFePo Lithium Ferro-Phosphate packs are available in either 2100mAh 6.6 volt 2s1p, 3800mAh 6.6 volt 2s2p OR 5000mAh 6.6 volt 2s1p packs. (3-cell 9.9 volt packs also available in EXB version only.)
  • Non flammable chemistry
  • Discharge maximum 20c (twenty times capacity) and maximum charge rate 4c.
  • Compact and lighter than A-123 packs, can be safely fast charged and have a long cycle life.

Choose from either SENTINEL (Internal Balance) or EXB (External Balance)

Internal Balance (Sentinel)

The term SENTINEL identifies a battery that has the balance low voltage warning circuit built onto the pack. The SENTINEL replaces the older PLUS version. (click on Internal Balance below for more information)

External Balance (EXB)

The EXB version of DURALITE batteries does not have a circuit for balancing or low voltage warning. It relies on the charger to do the balancing when being charged. (click on External Balance below for more information)