- Product description
- Charging programmes no. 1, 2, 4 and Li (gel, AGM, acid, LiFePO4) adjustable to battery type
- The charging voltage is free of peaks and regulated in such a way that the batteries cannot be overcharged.
- Fully automatic continuous operation: The charger can be permanently connected to the battery and keeps it fully charged. In the event of a mains failure, the batteries are not discharged (disconnection by safety switch).
- Lithium LiFePO4? Maintenance, Auto Wake Up, maintenance phase: Regular automatic activation of battery cell balancing every 10 days to ensure that the battery is always fully charged.
- Lead battery regeneration twice a week during long downtimes to prevent harmful acid stratification.
- Parallel and buffer operation: The battery continues to be charged or kept fully charged during simultaneous consumption. The charger automatically calculates and monitors the adjustment of the charging times.
- Monitoring-free charging: Multiple protection against overload, overheating, overvoltage, short circuit, polarity reversal, incorrect behaviour and battery back-discharge through electronic cut-off up to complete disconnection of charger and battery through built-in safety switches.
- Connection for battery temperature sensor (accessory temperature sensor 825, art. no. 2001): With lead batteries (acid, gel, AGM), the charging voltage is automatically adjusted to the battery temperature, ensuring better full charging of the weaker battery in cold weather and avoiding unnecessary battery gassing and thus battery stress 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-optimised operation at the touch of a button (night mode).
- Power supply unit function: Enables consumers to be supplied without a battery (e.g. battery replacement).
- Charging cable compensation: Voltage losses on the charging cables are automatically compensated for.
- Built-in on-board power supply filter: Problem-free parallel operation with solar systems, wind and petrol generators, dynamos etc. on one battery.
- Charging aid for deeply discharged lead batteries: Gentle 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.
- Disconnection of the batteries in the event of mains failure, overheating, malfunction (safety switch per charging output)
- Separate auxiliary charging output "S" for supporting and trickle charging the vehicle starter battery
Optional accessories:
- Remote control S (Art. 2075)
- Remote operating display IP67 (Art. 2081)
- Charger State Monitor IP67 (Art. 2082)
- Temperature sensor 825 (Art. 2001)
Technical data
Mains voltage (mains frequency 45 ? 65 Hz) | 110 V ? 230 V |
Mains function voltage range, all types | 85 V ? 270 V, briefly 305 V (5 sec.) |
Mains voltage range for full charging power | 180 V ? 270 V |
Mains power consumption max. | 400 W |
Mains power consumption when ready to charge | 1,9 W |
Active sinusoidal power factor correction (CosPhi < = 1) | Yes |
Charging current approx. at 110 V mains voltage | 18 A |
Main charging output battery I | |
Battery nominal voltage lead/ LiFePO4 battery | 12 V / 12 V?13.3 V |
Selectable charging programmes Lead?gel/AGM/acid, LiFePO4 | 4 |
Battery capacity (recommended) | 100 Ah ? 180 Ah |
Battery capacity (depending on application, e.g. also LiFePO4) | 60 Ah ? 290 Ah |
Charging current main charge, I?phase, 8 V to U1; 0?15.5 h | 25 A |
Charging/buffering/load current, regulated U1?U2?U3?phase | 0 A ? 25 A |
Minimum battery voltage for start of charging | 0 V |
Pre-charge current, deep discharged batteries 0 V ? 8 V | 12,5 A |
Reverse current from battery (mains failure) | < 0.5 mA |
Reset voltage (30 sec), depending on battery type | 12.75 V / 13.25 V |
Charging voltage limit (protection of connected loads) | 15,0 V |
External overvoltage cut-off (20 sec) | 15,5 V |
Voltage ripple | < 30 mV rms |
Charging timer | 4-fold |
Reverse polarity/short circuit/back discharge/safety protection | yes |
Safety timer per charging phase I?/U1?/U2? | yes |
Lead-acid battery regeneration for long periods, 2x 1 h per week | yes |
LiFePO4?auto wake-up during long downtimes, 10 times a day 0.5 h | yes |
or LiFePO4?lithium rest?maintenance (seasonal operation) | yes |
Input for battery temperature sensor | Yes |
Power supply operation (e.g. continued supply when changing batteries) | yes |
2nd auxiliary output vehicle?starter?battery II (signalling output mains) | |
Battery nominal voltage (lead) | 12 V |
Charging current or load capacity as signalling output | 0 A ? 2 A |
Reverse polarity/short circuit/back discharge/safety protection | Yes |
Connection for Automatic Charger remote control | yes |
Device mounting position | any |
Temperature range | ?20 / +45 °C |
Speed-controlled, temperature-controlled fan | Yes |
Gradual reduction of charging power in the event of overtemperature | Yes |
Safety cut-out in the event of overheating | yes |
Fan?noise reduction, night operation (silent run) | yes |
Protection class / protection type | I / IP21 |
Dimensions, dimensions incl. mounting flange/feet, without connections | 228 x 139 x 74 mm |
Weight | 1300 g |
Ambient conditions, humidity | max. 95 % RH, non-condensing |
Safety regulations | EN 60335?2?29 |
Scope of delivery: mains cable, operating instructions |
Safety instructions and warnings
Safety instructions for Votronic Automatic Charger Pb 1225 SMT 2B
- The device may only be installed and repaired by a specialist.
- Before connecting or opening the device, the power supply must be disconnected.
- Only the battery types recommended by the manufacturer may be connected.
- The polarity of the battery terminals must be correctly observed to avoid short circuits.
- The device must be installed in a well-ventilated area to avoid overheating.
- Ensure that the device is protected from moisture.
- If the device is installed in a vehicle, it must be securely fastened to prevent damage while travelling.
- No changes may be made to the device in order to avoid malfunctions.
- The device must not be installed near flammable materials.
- When charging the batteries, the device must not be covered to avoid overheating.
Manufacturer contact information
Manufacturer Contact
VOTRONIC Elektronik-Systeme GmbH
Johann-Friedrich-Diehm-Str. 2
36341 Lauterbach
https://www.votronic.de/kontakt/