Manual Book

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.

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.

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.

Equalization may increase battery voltage to a level damaging to sensitive DC

loads. Ensure that all load allowable input voltages are greater than the equalizing

charging set point voltage.

WARNING

The Rover MPPT charge controller has a reactivation feature to awaken a sleeping lithium

battery. The protection circuit of lithium battery will typically turn the battery off and make it

unusable if over-discharged. This can happen when storing a lithium battery pack in a

discharged state for any length of time as self-discharge would gradually deplete the remaining

charge. Without the wake-up feature to reactivate and recharge batteries, these batteries would

become unserviceable and the packs would be discarded. The Rover will apply a small charge

current to activate the protection circuit and if a correct cell voltage can be reached, it starts a

normal charge.

Lithium Battery Activation