PowerGenix Nickel-Zinc Charge Procedure

Two Step Charge

1. Constant Current: From 1.0 to 2.0 Amps to 1.9V/Cell
2. Constant Voltage: 1.9V/Cell to Current < 90mA

Fault Conditions

• Total charge time exceeds 2.5 hrs
• Temperature of the cell rises by more than 15C
• Voltage is less than 1.6V

Notes: For Laboratory Testing: Non temperature compensation at 25°C +/_ 3 degrees

Temperature Compensated Charge Procedure

Two Step Charge

• Temperature Compensated Voltage (TCV) = 1.90 - (0.003 x (T-25ºC) V/Cell
• Constant Current 2A to TCV
• Constant Voltage TCV to I < 90 mA

Fault Conditions

Stop Charge if the any of the following conditions occur:

• Total charge time exceeds 2.5 hrs
• Temperature of the cell rises by more than 15ºC
• Temperature of the cell exceeds 40ºC
• Voltage is less than 1.6V

Charge Characteristics at 25°C

Maintenance Charge Procedure

Recharge cell/pack per Standard Charge Procedure if:

• Volts per cell < 1.68 V
• Time since last full charge > 30 days