UZ Energy IG-16K-U 16kWh 51.2V Battery
SKUIG-16K-U
The UZ Energy IG-16K-U is a 16 kWh low-voltage home battery from UZ Energy's Power Lite Plus series. It uses lithium iron phosphate (LFP) cells and runs at 51.2 V nominal, the voltage used by "48 V" battery inverters. All 16.0 kWh...
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Product Overview
The UZ Energy IG-16K-U is a 16 kWh low-voltage home battery from UZ Energy's Power Lite Plus series. It uses lithium iron phosphate (LFP) cells and runs at 51.2 V nominal, the voltage used by "48 V" battery inverters. All 16.0 kWh are rated as usable (at 100% depth of discharge in UZ Energy's test conditions).
The battery connects to a 48 V battery inverter or hybrid inverter, which charges it from solar, the grid or a generator and turns its DC power into AC power for the home. It can charge at up to 8.2 kW and discharge at up to 10.24 kW, with a 12.8 kW peak for 15 seconds. The cabinet is rated IP65 and includes a DC breaker, fuse, battery management system (BMS) and Wi-Fi antenna. UZ Energy lists heating and a fire-extinguishing device as options.
Best For
- Home backup: UZ Energy lists blackout and emergency backup as uses. Store energy for outages as part of a properly designed backup system with a 48 V inverter.
- Solar-plus-storage homes: Store daytime solar power for use in the evening and at night.
- High-use homes: UZ Energy says the 16 kWh size gives high-consumption homes a large energy reserve.
- Growing systems: UZ Energy allows up to 64 units in parallel (1,024 kWh) and recommends no more than 16 (256 kWh).
- Outdoor or garage installs: IP65 rated, with operation from −4°F to 131°F (−20°C to 55°C) when the battery has the heating option.
Key Features & Specifications
| Specification | Details |
|---|---|
| Product type | Low-voltage (51.2 V) LFP home battery with built-in BMS |
| Model | IG-16K-U (UZ Energy Power Lite Plus series) |
| Nominal / usable energy | 16.0 kWh / 16.0 kWh. Usable energy may vary with different inverters. |
| Capacity | 314 Ah |
| Nominal voltage / range | 51.2 V; 43.2–58.4 V working range |
| Charge / discharge current | 160 A rated and maximum charge; 160 A rated discharge; 200 A maximum discharge (at 70% charge or higher and cell temperature below 104°F / 40°C) |
| Power | 8.2 kW maximum charge; 10.24 kW maximum discharge; 7.8 kW recommended |
| Peak discharge | 250 A / 12.8 kW for 15 seconds |
| Charging method | Constant current at 0.5C to 57.6 V, then constant voltage at 57.6 V until current drops to 0.05C |
| Usable charge range | 10% to 100% state of charge (adjustable) |
| Communication | CAN, RS485, dry contact, Wi-Fi |
| Parallel units | Up to 64 (1,024 kWh); 16 or fewer recommended (256 kWh) |
| Cycle life | 8,000 cycles designed (0.5C, 90% depth of discharge, 77°F, to 70% state of health) |
| Operating temperature | With heating: charge and discharge −4°F to 131°F (−20°C to 55°C). Without heating: charge 32°F to 131°F (0°C to 55°C); discharge −4°F to 131°F. |
| Heating / fire extinguishing | Optional / optional |
| Enclosure and cooling | IP65; natural cooling |
| Dimensions (W × D × H) | 19.7 × 9.3 × 37.1 in (500 × 235 × 943 mm) |
| Weight | About 275.6 lb (125 kg) |
| Altitude | Up to 9,842 ft (3,000 m) |
| Certifications | UL 9540, UL 9540A, UL 1973, IEC 62619, IEC 61000, UN 38.3, FCC; CEC listed |
| Warranty | 10 years |
What You May Also Need
Usually required
- Low-voltage (48 V-class) battery inverter or hybrid inverter: Turns the battery's DC power into AC power and charges the battery. For closed-loop communication over CAN or RS485, check UZ Energy's documentation for supported inverter models.
- Battery cables: Connect the battery to the inverter. Size them for up to 200 A of discharge current and the length of the run, per code.
- Fuse, breaker or disconnect: Overcurrent protection and a way to isolate the battery, sized to electrical code and the inverter's manual.
May be required
- More IG-16K-U batteries: For more storage or more power. UZ Energy recommends no more than 16 in parallel.
Optional upgrades
- Hybrid inverter: If you want one unit that handles solar charging, battery and backup together, use a low-voltage (48 V-class) hybrid inverter selected for your system.
Check current manufacturer documentation before combining components, especially batteries, inverters, communications equipment and system-control hardware.
Important Considerations
- Cold-weather charging needs the heating option. Without heating, UZ Energy lists charging only from 32°F (0°C). Confirm whether your unit has heating before installing it somewhere that freezes.
- Maximum discharge has conditions. The 200 A maximum applies at 70% charge or higher with cell temperature below 104°F (40°C). Size loads around the 160 A rated current.
- Heavy. About 275.6 lb. Plan for moving and securing it.
- Inverter settings. Set the inverter to UZ Energy's charging method (57.6 V) and the right communication protocol.
- Installation. Install to electrical code and local rules. Battery systems usually need a permit and inspection by your local code office (AHJ).