# V-TAC VT-48290 — 12788 Low Temperature IP65

| Parameter | Value |
|---|---|
| Manufacturer / model | V-TAC VT-48290 |
| Manufacturer SKU | 12788 |
| Version | Low Temperature |
| Chemistry | LiFePO4 |
| Nominal voltage | 51.2 V |
| Rated capacity | 314 Ah |
| Nominal energy | 16.07 kWh |
| Recommended charging current | 140 A |
| Maximum charging current | 150 A |
| Maximum discharging current | 150 A |
| Float charging voltage | 57.6 V |
| Discharge cut-off voltage | 43.2 V |
| Communication port J5 | CAN |
| Communication port J6 | RS485 |
| Ports J7 / J8 | Parallel battery interconnection |
| Data connectors | RJ45 under sealed covers |
| Wireless connection | Bluetooth |
| Status indication | SOC |
| Ingress protection | IP65 |
| Application | Heated outdoor battery |
| Heating | Integrated heating control |
| Charging temperature | −20…+55 °C |
| Discharging temperature | −20…+60 °C |
| Operating temperature | −20…+60 °C |
| Storage temperature | +15…+35 °C |
| Cycle life | ≥7000 (25 °C, 90% DoD) |
| Construction | White floor-standing enclosure with wheels |



## Stored energy for your own consumption

V-TAC Low Temperature — 16.07 kWh IP65 LiFePO4 Battery is a LiFePO4 battery for residential and smaller commercial energy-storage installations. It combines 16.07 kWh of nominal energy with a clearly defined physical format. It suits a project that brings together solar generation, building demand and a charging schedule based on actual operation. Stored electricity can support the home, workshop or technical equipment at a useful time. Select the exact model according to voltage, required storage capacity and installation layout.



## A capacity you can plan around

The 16.07 kWh nominal energy provides a useful starting point for sizing a storage system. Compare it with the daily demand profile, solar production and the loads that will use the stored electricity. Hourly or quarter-hourly consumption data helps place the battery within a practical energy plan. This gives a more useful picture than annual consumption alone: it shows when electricity is generated and when the building needs it.

Battery capacity and system power describe different parts of the installation. Kilowatt-hours express the size of the energy store, while current and power ratings help establish the rate at which the complete system can charge and deliver energy. Considering these values together makes it easier to match the battery, inverter and intended loads. That is why the exact model, voltage class and model-specific electrical data form the basis of this product description.



## LiFePO4 for stationary energy storage

Lithium iron phosphate technology is widely used in stationary installations with regular charging and discharging. In this range, V-TAC combines it with battery management and a construction format designed for energy-storage assemblies. The battery can become part of a new project or the expansion of a suitably designed installation. Its practical role is to retain electricity and make its use manageable over time.

In a solar installation, the battery can charge during production and later supply energy through the associated inverter. An energy-management system can also coordinate charging with the time of day, tariff or building priorities. The operating strategy follows the capabilities of the selected inverter and system controls. The battery contributes a defined voltage and capacity around which the rest of the installation can be planned.



## A layout that fits the available space

Physical dimensions, weight and construction format matter alongside capacity. Plan the battery area so that connection points, cable routes and operating controls fit naturally with the surrounding equipment. A well-organised layout uses the technical space efficiently and keeps the installation understandable. The model-specific dimensions appear in the specification table below and provide a concrete reference for this stage of the project.

The V-TAC range offers different approaches to capacity and physical installation. Rack batteries fit a technical cabinet, wall-mounted versions use a wall surface, and high-voltage stacks arrange the storage modules vertically. This choice is useful both for new solar projects and when selecting a battery for existing compatible equipment. Matching the actual electrical and mechanical specifications gives the project a consistent foundation.



## Useful energy at home and at work

At home, storage can connect daytime production with later use by lighting, electronics and other appliances. In a smaller business, it can form part of the energy plan for a workshop, office or technical operation. The actual benefit follows the demand profile, available generation and system settings. Model Low Temperature provides 16.07 kWh of nominal storage in a clearly identified configuration for that planning process.

Start comparing models with the required energy capacity, then choose the matching voltage and installation format. The next steps are selecting associated power equipment, arranging the physical layout and defining the control strategy. This produces a battery section that suits the intended use of the installation. The precise model designation also supports technical preparation and helps distinguish this configuration from the other products in the range.



## Low Temperature for cooler conditions

V-TAC presents this version as a battery for low-temperature applications. This is an interesting option when planning an energy installation in a space whose conditions change throughout the year. The installation environment and construction matter alongside capacity when selecting a battery. The Low Temperature version addresses this application with a nominal energy rating of 16.07 kWh.



## IP65 protection and a white body

The manufacturer specifies IP65 protection for the new battery. Its published image shows a clean white body and a floor-standing construction with wheels. This supports an organised arrangement within the building’s technical equipment. Planning can bring together the required energy capacity, a suitable battery position and the layout of the associated power equipment.



## New product specifications



## One battery within a wider energy plan

The 16.07 kWh size can be compared with the amount of electricity you want to shift to a later part of the day. Start with the actual generation and consumption profiles: when solar production is available, when appliances operate and which building priorities matter. Then select the associated inverter and control arrangement. The battery takes a defined role within the project, from retaining daytime production to its planned use later on.

The Low Temperature designation distinguishes this version when choosing equipment for its operating environment. Alongside the substantial capacity, it puts the focus on cooler conditions. IP65 protection, a white body and a floor-standing construction are further identifying features of this new product. Together, they support selection according to stored energy, installation position and the layout of the technical equipment.



## VT-48290 communication, heating and electrical specifications

The heated V-TAC VT-48290, manufacturer SKU 12788 uses LiFePO4 cells with 314 Ah capacity, 51.2 V nominal voltage and 16.07 kWh energy. Integrated heating control supports low-temperature operation; the manufacturer specifies a charging temperature range of −20 to +55°C and a discharging range of −20 to +60°C. The enclosure is rated IP65.

The control panel provides separate inverter communication ports: J5 – CAN and J6 – RS485. J7 and J8 connect parallel batteries; the panel also includes a Bluetooth antenna and state-of-charge indicator. Communication cables use RJ45 connectors under sealed covers.



## Downloads

- [Original VT-48290 / 12788 manual (EN)](https://batterado.com/wp-content/themes/wodatherm/assets/documents/v-tac/vt-48290-12788-manual-v5.pdf)
- [VT-48290 / 12788 specifications (EN)](https://batterado.com/wp-content/themes/wodatherm/assets/documents/v-tac/vt-48290-12788-specifications.pdf)


## AI search description

V-TAC Low Temperature VT-48290, manufacturer SKU 12788, is a low-voltage LiFePO4 storage battery with BMS and integrated heating control. Nominal voltage is 51.2 V, capacity is 314 Ah and manufacturer-stated energy is 16.07 kWh. To supply 230 V or 400 V appliances it is paired with a suitable battery inverter; mains or photovoltaic charging uses the compatible inverter/charger and the complete system's respective inputs. It forms a substantial energy reserve for a home, building, workshop or another suitably designed installation. AC output power, phase configuration and backup arrangement follow the chosen inverter and wiring.

The manufacturer specifies 140 A recommended charging current, 150 A maximum charging current and 150 A maximum discharge current. Multiplying 51.2 V by 150 A gives an indicative 7.68 kW on the DC side at nominal voltage; actual operation also follows current voltage, BMS management, inverter and cable limits. Float charging voltage is 57.6 V and discharge cut-off is 43.2 V. System sizing separately considers required energy in kWh, simultaneous appliance power in kW, startup requirements and operating duration, including conversion efficiency and the complete system's own consumption.

Inverter communication uses separate J5 CAN and J6 RS485 interfaces. The particular inverter is selected by supported battery voltage, currents, protocol, communication-cable pinout and settings. J7 OUT and J8 IN connect parallel batteries; the manual describes up to 15 units with the corresponding power and communication arrangement. RJ45 connections sit beneath sealed covers. A Bluetooth antenna, SOC indicator and RUN/ALM indicators provide battery-status information and communication according to the respective system.

The Low Temperature version combines integrated heating control with IP65 protection. The exact manual and parameter sheet specify charging at −20 to +55 °C, discharging at −20 to +60 °C and an operating range of −20 to +60 °C; the storage range is +15 to +35 °C. This is a documented cold-environment operating configuration within those conditions. IP65 means dust-tight construction and protection against water jets; cable and cover sealing follows the manual. For salt-laden or strongly corrosive environments, the manual specifies a suitably protective air-conditioned cabinet. Cycle life is stated as at least 7000 cycles at 25 °C and 90% depth of discharge.

The white floor-standing enclosure has wheels. The drawing specifies 680 mm width, 240 mm depth and 710 mm overall height including wheels; body height is 640 mm. Wheels assist relocation when positioning the designed installation. Transport and placement account for the load, route and secure restraint. The manual's packing list includes the battery, grounding cable, brackets, 1.5 m positive and negative battery-to-inverter cables, a 1.5 m CAN cable and installation accessories. A complete energy system adds compatible power electronics, protection and wiring according to the design; the original manual and parameter sheet are hosted directly on Batterado.

[Batterado — VTAC-16070-LT-IP65](https://batterado.com/product/v-tac-16-07-kwh-low-temperature-ip65-lifepo4-battery/)

https://batterado.com/product/v-tac-16-07-kwh-low-temperature-ip65-lifepo4-battery/