Installation Manual

8
Spikes are fast, short duration electrical transients in voltage (voltage spikes), current (current spikes), or transferred energy
(energy spikes) in an electrical circuit. Voltage spikes usually happen when the AC/DC adaptor is plugged in, or charge current
is cut off quickly. Multi voltage chargers are made using transformers that may be capable of producing spikes that exceed the
maximum ratings of the Discover AES. You must conrm with the charger supplier that the chargers being supplied:
• meet Discover’s recommended charge curve, and
• are not capable of exceeding Discover’s maximum terminal voltages.
6.3 Charge Curve
Charge sequence
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.
▲ 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
14-24-2800
8S 110 Adc maximum 27.2 V
I2 ≤ 2 A
44-24-2800
12-36-6700 12S 150 Adc maximum 40.8 V
12-48-6650
16S 130 Adc maximum 54.4 V
42-48-6650
6.4 Discharging
• Turn on battery
• Turn on load
▲ NOTE!
Do not discharge battery below recommended minimum
operating voltages.
Absorption
Charge Current % of Bulk Charge C-Rate [%]
Voltage - U Current - I
Bulk
Cell Voltage [V]
2.820%
40%
60%
80%
100%
3
3.2
3.4
3.6
U1
I2
I1