VOTRONIC Automatic Charger Pb 1220 SMT 2B

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The automatic charger Pb 1220 SMT 2B from Votronic (MPN 3101) is a modern battery charger for mobile use. It has charging programs for GEL, AGM, acid and modern lithium batteries and is designed for 12V battery voltage. The charging current at the main output is 20A. In addition, there is an auxiliary charging output for the starter battery, which can supply an additional 2A charging current. The device is suitable for batteries with a capacity of 80 Ah - 145 Ah.

Key features of the Pb 1220 SMT 2B battery charger

  • reliably charges GEL, AGM, acid and LiFePO4 batteries
  • 20A charging current, 2A charging current at the auxiliary charging output
  • official Votronic part number: 3101
  • Battery capacity (recommended): 80 Ah - 145 Ah
  • Charging options: 1 supply and 1 starter battery
  • The charging voltage is peak-free and regulated in such a way that the batteries cannot be overcharged.
  • Fully automatic continuous operation: The charger can be constantly connected to the battery and keeps it fully charged. In the event of a power failure, the batteries are not discharged (separation by safety switch).
  • Lithium LiFePO4- Maintenance, Auto Wake Up, maintenance phase: Regular automatic activation of the battery cell balancing every 10 days to ensure the battery is fully charged.
  • Twice a week lead-acid battery regeneration during long standstill periods to prevent damaging acid stratification.
  • Parallel and buffer operation: If the battery is consumed at the same time, it continues to be charged or is kept full. The charging times are automatically calculated and monitored by the charger.
  • Charging without supervision: Multiple protection against overload, overheating, overvoltage, short circuit, polarity reversal, malfunction and reverse battery discharge through electronic regulation up to complete separation of charger and battery through built-in safety switch.
  • Connection for battery temperature sensor (temperature sensor 825 accessory, art. no. 2001): With lead batteries (acid, gel, AGM), the charging voltage is automatically adjusted to the battery temperature, caused by cold better full charging of the weaker battery, unnecessary battery gassing and thus battery stress is avoided in summer temperatures.
  • With LiFePO4 batteries, the battery temperature sensor is required for the function: It serves to protect the battery at high and especially at low temperatures below 0°C.
  • Silent run function: noise-optimized operation at the touch of a button (night mode).
  • Power pack function: Allows the consumers to be supplied without a battery (e.g. changing the battery).
  • Charging cable compensation: Voltage losses on the charging cables are automatically corrected.
  • Built-in on-board network filter: Problem-free parallel operation with solar systems, wind and petrol generators, alternators, etc. on one battery.
  • Charging aid for deeply discharged lead batteries: careful pre-charging of the (lead-acid, -gel, -AGM) battery up to 8 V, then powerful support for the battery if consumers are still switched on.
  • Battery disconnection in the event of a power failure, overheating, malfunction (safety switch per charging output).
  • Separate secondary charging output "S" for support and trickle charging of the vehicle starter battery.¬
  • Overview of the charging programs of the Pb 1220 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 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 have a particularly high U1 level with coordinated holding times for full charging and then a moderate U2 level for trickle charging (plate and round cell technology).

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

    "LiFePO4": Charging program for lithium batteries, characteristic curve IU1oU2oU3 Charging program tailored to lithium LiFePO4 batteries with their own BMS and prescribed or built-in protective circuit. A special rest condition automatically keeps the LiFePO4 battery on when the vehicle is parked (seasonal operation). a charge level of 50-80%, which is advantageous for the service life, and also buffers 12 V consumers and the vehicle starter battery.In addition, a regular Auto Wake UP function activates the battery cell balancing.

    Scope of delivery:

    1X Votronic 3101 Pb 1220 SMT 2B battery charger

    1x operating instructions (German)

    Technical data:

    Mains voltage (mains frequency 45 - 65 Hz) 110V-230V
    Mains working voltage range, all types 85V - 270V, momentary 305V (5 sec)
    Mains voltage range for full charging power 180V-270V
    Mains power consumption max. 330W
    Mains power consumption when ready to charge 1.9W
    Active sinusoidal power factor correction (CosPhi <= 1) yes
    Charging current approx. at 110 V mains voltage 18A
    Main charging output battery I
    Battery nominal voltage lead/LiFePO4 battery 12V/12V-13.3V
    Selectable charge programs lead gel/AGM/acid, LiFePO4 4
    Battery capacity (recommended) 80Ah - 145Ah
    Battery capacity (according to application, e.g.also LiFePO4) 50Ah - 230Ah
    Charge current, main charge, I phase, 8 V to U1; 0-15.5h 20A
    Charge/buffer/load current regulated U1-U2-U3 phase 0A - 20A
    Minimum battery voltage to start charging 0V
    Pre-charging current, deeply discharged batteries 0 V - 8 V 10.0A
    Reverse current from battery (mains failure) <0.5mA
    Reset voltage (30 sec), battery type dependent 12.75V / 13.25V
    Charge voltage limit (protection of connected consumers) 15.0V
    External Over Voltage Shutdown (20 sec) 15.5V
    Voltage Ripple <30mVrms
    Load timer quadruple
    Reverse polarity/short circuit/back discharge/safety protection yes
    Safety timer per charging phase I-/U1-/U2- yes
    Lead-acid battery regeneration in the event of a long standstill, twice a week for 1 hour yes
    LiFePO4-Auto Wake Up in case of long standstill, 10 daily 0.5 h yes
    or LiFePO4 lithium dormant float (seasonal) yes
    Input for battery temperature sensor yes
    Power pack operation (e.g. continued supply when changing the battery) yes
    2. Auxiliary output for vehicle starter battery II (mains signaling output)
    Battery Nominal Voltage (Lead) 12V
    Charging current or load capacity as signaling output 0A - 2A
    Reverse polarity/short circuit/back discharge/safety protection yes
    Connection for remote control Automatic Charger yes
    Device installation position any
    temperature range -20 / +45 °C
    Speed ​​controlled, temperature controlled fan yes
    Gradual curtailment of charging power at overtemperature yes
    Overheat Safety Shutdown yes
    Fan noise reduction, night mode (silent run) yes
    protection class / protection type I / IP21
    Dimensions, Dimensions including mounting flanges/feet, without connections 228x139x74mm
    Weight 1280g
    Ambient conditions, humidity max. 95% RH non-condensing
    Safety regulations EN 60335-2-29
    Scope of delivery: power cord, user manual