Renogy RCC20RVRE-G1, Руководство пользователя

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Bulk Charge: This algorithm is used for day to day charging. It uses 100% of available solar
power to recharge the battery and is equivalent to constant current. In this stage the battery
voltage has not yet reached constant voltage (Equalize or Boost), the controller operates in
constant current mode, delivering its maximum current to the batteries (MPPT Charging) .
Float Charge: After the constant voltage stage, the controller will reduce the battery voltage
to a float voltage set point. Once the battery is fully charged, there will be no more chemical
reactions and all the charge current would turn into heat or gas. Because of this, The charge
controller will reduce the voltage charge to smaller quantity, while lightly charging the battery.
The purpose for this is to offset the power consumption while maintaining a full battery storage
capacity. In the event that a load drawn from the battery exceeds the charge current, the control-
ler will no longer be able to maintain the battery to a Float set point and the controller will end the
float charge stage and refer back to bulk charging.
Constant Charging:
When the battery reaches the constant voltage set point, the controller
will start to operate in constant charging mode, where it is no longer MPPT charging. The current
will drop gradually. This has two stages, equalize and boost and they are not carried out constantly
in a full charge process to avoid too much gas precipitation or overheating of the battery.

Boost Charge: Boost stage maintains a charge for 2 hours by default. The user
can adjust the constant time and preset value of boost per their demand.
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Battery
Voltage
Equalize
Boost
Float
Recharge
Bulk Charge
A B C
Constant charging
Cumulative Time:3h
Float Charge
Boost
Time
Battery
Current
Time
Bulk
Max Current
Duration Time:2h
(Range:10-180min)