The Automatic-Charger Pb 1280 SMT 2B from Votronic (MPN 3131) is a modern battery charger for mobile use. It has charging programs for GEL, AGM and lead-acid batteries and is designed for 12V battery voltage. The charging current at the main output is 80A. There is also a secondary charging output for the starter battery, which can supply an additional 2A charging current. The device is suitable for batteries with a capacity of 150 Ah - 880 Ah.

Important features of the Pb 1280 SMT 2B battery charger

• reliably charges GEL, AGM and lead-acid batteries

• 80A charging current, 4A charging current at the auxiliary charging output

• Official Votronic part number: 3131

• Battery capacity (recommended): 150 Ah - 880 Ah

• Charging options: The Pb 1280 SMT 2B charges: one supply battery and one starter battery.

• Excellent charging technology

• The charging voltages are free of peaks and regulated to prevent overcharging

• Fully automatic continuous operation for constant operational readiness of the batteries

• Precise battery temperature compensation (temperature sensor art. no. 2001 required)

• Separate auxiliary charging output "S" for support and trickle charging of the vehicle starter battery, max. 2A

• Automatic battery regeneration during long downtimes (twice a week)

• Compensation of voltage losses on the charging cables for exact compliance with the charging voltages

• Intelligent microprocessor control takes into account the simultaneous supply of consumers to the battery

• Disconnection of the batteries in the event of mains failure, overheating, malfunction (safety switch per charging output)

• Silent-run function adjustable (night setback)

• Battery capacity adjustable in 4 stages (12 charging programs in total)

• Inputs for voltage sensor (sense) cables, optionally usable with extra-long charging cables and/or external, lossy diode charging current distributors

• Mains/charging power can be reduced for low-power or limited mains supply, e.g. weakly fused shore power supply, generator operation, etc. (power limit function)

Overview of the charging programs of the Pb 1280 SMT 2B
"Gel": Charging program for gel batteries, characteristic curve IU1oU2oU3, matched to sealed, gas-tight gel/dryfit batteries with fixed electrolyte, which generally require a higher charging voltage level and longer U1 holding times in order to achieve short charging times with particularly high capacity storage and to avoid long-term battery "starvation".

"AGM": Charging program for AGM/fleece batteries, characteristic curve IU1oU2oU3 Intended for charging sealed, gas-tight AGM (Absorbent Glass Mat) batteries in lead-fleece technology, which require a particularly high U1 level with coordinated holding times for full charging and then a moderate U2 level for charge retention (plate and round cell technology). .

"UNIVERSAL": Charging program for lead-acid/wet/AGM batteries, characteristic curve IU1oU2oU3 Universal program for charging and charge retention of acid batteries in vehicles (mixed mobile/stationary). With a medium U1 level, still offers short charging times, a good charging factor and good acid mixing for open and closed, low-maintenance, maintenance-free standard, traction, lighting, solar and heavy-duty batteries, as well as AGM batteries with a normal U1 level.

Scope of delivery:

1x Votronic 3131 Pb 1280 SMT 2B battery charger
1x operating instructions (German)