Battery charger for marine applications B2B12 series

for automobilesdesktopVRLA

Overview
DC-DC charger that can charge the main battery through the alternator and starter battery, and (in some models) charge the main battery from solar panels. Designed for motorhomes, campers, ships and similar mobile installations.

B2B Charge

• Charges the main battery via the alternator and the starter battery; can also transfer charge between batteries when not installed in the vehicle.
• When the vehicle is running, the alternator can rapidly charge the main battery through the charger at full power.
• Charger can boost or buck voltage/current to follow the standard charging curve for the main battery type.

MPPT Solar Charge

• Improves solar charging efficiency by 10–30% using Maximum Power Point Tracking (MPPT).
• Matches solar output to the required charging current by boosting or stepping down to follow the battery charge profile.
• Maintains a small trickle charge to the starter battery during long periods of inactivity to preserve starting power.

Key specifications (from short description)

• Input → Output Voltage: 12V → 12V
• DC-DC Charger Current: 30A / 60A
• Main battery types supported: GEL, Sealed Lead Acid, AGM, LiFePO4, Ternary Lithium Battery
• Size & Weight: 30A: 190x194x70mm / 1.44 kg; 60A: 190x215x70mm / 1.6 kg
• Warranty: 2-year

Technical Parameters
Model: B2B1230 | B2B1260
Main battery voltage: 12V | 12V
Main battery type: GEL, Sealed Lead Acid, AGM, LiFePO4, Ternary Lithium Battery
Starting battery voltage: 12V
Starting battery type: Lead-acid
Maximum charging power: 390W | 780W
Maximum charging current: 30A | 60A
Standby current: 24mA | 24mA
Dimensions: 190x194x70mm | 190x215x70mm
Weight: 1.44kg | 1.6kg

DC12V→DC12V (selected models)
B2B1230 — Input 12V→12V — DC-DC Charging Current 12V/30A — Solar panel charging current: -- — Maximum solar panel power: --
B2B1260 — Input 12V→12V — DC-DC Charging Current 12V/60A — Solar panel charging current: -- — Maximum solar panel power: --

Accessories

• Display (MT-2)
• Bluetooth module (BT10)
• Temperature sensor (TRS)

Features / Technical specifications

• Model B2B1230: 12V/30A, Maximum charging power 390W, Standby current 24mA, Dimensions 190x194x70mm, Weight 1.44kg
• Model B2B1260: 12V/60A, Maximum charging power 780W, Standby current 24mA, Dimensions 190x215x70mm, Weight 1.6kg
• Main battery voltage: 12V
• Main battery types supported: GEL, Sealed Lead Acid, AGM, LiFePO4, Ternary Lithium Battery
• Starting battery: 12V Lead-acid
• Accessories: Display (MT-2), Bluetooth module (BT10), Temperature sensor (TRS)