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Charging System – BM Pro
Your trailer is fitted with a BM PRO Battery Plus 35SR management unit. This unit controls all power input to the
trailer. The unit is a multi-stage charger for solar, vehicle and shore power input.
Important!
• Never store items in the area of the BM PRO unit.
• Never block vents associated with the BM PRO unit storage.
• Do not modify or attempt own repairs on the BM PRO unit.
• Maintenance and repairs should only be carried out by a suitably qualified and accredited person.
Battery Health Preservation
The BatteryPlus35-II preserves battery health by preventing the battery from excessive discharge. The
BatteryPlus35-II will start a two-stage shutdown or Low Voltage Disconnect (LVD), powering down the
BatteryPlus35-II outputs. This is to conserve remaining battery capacity until the battery can be charged.
LVD MODE LEAD ACID LIFEPO4 (HA ONLY)
ECO 10.8V 12.0V
Storage 10.5V 11.5V
Recovery 12.8V 13.8V
Table 7: LVD Mode voltage thresholds
The BatteryPlus35-II will enter the two stages of LVD, ECO Mode and Storage Mode, when the caravan’s battery
voltage falls below the LVD thresholds.
Note: BRK+ Battery Output (40A rated) is not controlled by the LVD mode.
ECO MODE
In ECO Mode, the BatteryPlus35-II will continue to provide power to your battery monitor, however power to
the load terminal block will be turned off (except for terminal 1).
Batteries are electrically live and must be treated with extreme caution. They can supply high short circuit
currents, even if they appear damaged or undamaged.
Do not allow water or other liquids to enter the power supply area.
Contact with water will cause the device to short-circuit or corrode.
Do not use this product in environments that are excessively hot, cold, dusty, or humid or where it will be
exposed to magnetic fields or long periods of sunshine. Such exposure may cause the product or your battery
to fail, catch fire or explode.
Clean the housing of this product lightly with a dry or moist cotton cloth. Do not use alcohol, thinners,
benzene, or any other chemical cleaner.
The MiniBoost is a high precision electronic product. It contains no user-serviceable parts inside. Do not try to
dismantle, modify, or repair it yourself. Disassembly, service, or repair by an unauthorized person will void the
warranty.
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