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
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 | |