Epsolar LandStar LS0524R, Instruction Manual, Page: 17 / 40

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4 Operation
4.1 Battery Charging Information
Figure 4-1 PWM Charging mode
· Bulk Charge
In this stage, the battery voltage has not yet reached boost voltage and
100% of available solar power is used to charge the battery.
· Boost Charge
When the battery has recharged to the Boost voltage setpoint,
constant-current regulation is used to prevent heating and excessive
battery gassing. The Boost stage remains 120 minutes and then goes to
Float Charge.