SLA and Li-ion batteries
The C7x00 analyzer uses a Constant Current/Constant Voltage Charge algorithm to charge
SLA and Li-ion batteries. A current and voltage plot is shown for a typical Li-ion battery
serviced on the analyzer with default C-Code settings. This plot is similar for the SLA
battery.
There are three stages during the charge:
Stage 1: the battery is charged at a constant current (this current is the ‘Charge Rate’ in the
Extended C-Code) until the battery reaches the Maximum Charge Voltage (set in the Extended C-
Code) is reached.
Stage 2: When the battery reaches Maximum Battery Voltage, the analyzer switches to constant
voltage. During this stage, current is reduced to maintain Maximum Charge Voltage until the End of
Charge current (set in the C-Code) is reached.
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