NP1-BEQ

High voltage direct NP replacement
Better cold temperature performance than 12 volt NPs
High Capacity NiCd cells - low internal impedance
Charges with any NP charger
Best economy

Capacity: 25Wh @ 25watts
Voltage: 13.2 V nominal
Nominal Runtime @ 25Watts:~1 hr
Weight: ~1.7lbs (771g)

NP-35

High voltage direct NP replacement - NO memory
   problems
Best cold temperature performance
High Capacity NiCd cells - low internal impedance

Capacity: 35Wh @ 25watts
Voltage: 14.4 V nominal
Nominal Runtime @ 25Watts:~1.3 hrs
Weight: ~1.7lbs (771 kg)

NHP-500

High capacity NiMH cells
4 LED Fuel gauge - remembers load for accurate
   indications
Lower impedance than li-ion
Consistent performance in all operating conditions

Capacity: 50Wh @ 25watts
Voltage: 13.2 V nominal
Nominal Runtime @ 25Watts:~2 hrs
Weight: ~1.7lbs (771 kg)