Installation Guide

7.3 Charge Curve
1. Charge at constant current to 3.4 V per cell module (Bulk).
2. Maintain constant voltage 3.4 V per cell module (Absorption).
3. Terminate when charge current drops below 2A.
4. Optional Float at 3.35V per cell module (Float).
▲ CAUTION!
Do not charge battery higher than 3.4 V per cell module.
▲ NOTE!
Recommended charge current is 0.5C
Model
Cell Modules
in Series
I1 U1
Termination
Charge Current
U2
44-24-2800 8S 110 Adc maximum 27.2 V
I2 ≤ 2 A
26.8 V
42-48-6650 16S 130 Adc maximum 54.4 V 53.6 V
7.4 Discharging
• Set the battery to ON
• Set the load to ON
• Recommended low voltage cut off: 24 V | 48 V
▲ NOTE!
Do not discharge battery below recommended minimum
operating voltages.
▲ NOTE!
Do not discharge battery at rates greater than
recommended operating currents.
9
Absorption
Charge Current % of Bulk Charge C-Rate [%]
Voltage - U Current - I
Bulk Float
Cell Voltage [V]
2.820%
40%
60%
80%
100%
3
3.2
3.4
3.6
U2
I1Max
I1Rec
U1