Full Product Manual

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.

Boost Charge:When the battery has charged to the Boost voltage set-point, it undergoes an

absorption stage which is equivalent to constant voltage regulation to prevent heating and

excessive gassing in the battery. The Boost time is 120 minutes.

Float Charge: After Boost Charge, 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 controller 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.

Equalization: Is carried out every 28 days of the month. It is intentional overcharging of the

battery for a controlled period of time. Certain types of batteries benefit from periodic equalizing

charge, which can stir the electrolyte, balance battery voltage and complete chemical reaction.

Equalizing charge increases the battery voltage, higher than the standard complement voltage,

which gasifies the battery electrolyte.

WARNING:Once equalization is active in the battery charging, it will not exit this stage unless

there is adequate charging current from the solar panel. There should be NO load on the batteries

when in equalization charging stage.

WARNING:Over-charging and excessive gas precipitation may damage the battery plates and

activate material shedding on them. Too high of equalizing charge or for too long may cause

damage. Please carefully review the specific requirements of the battery used in the system.