--- title: "GR Low-Voltage Rack-Mounted Battery" description: "High-efficiency GR Low-Voltage Rack-Mounted Battery for residential ESS. Scalable LFP battery with smart BMS, 6000+ cycle life, and easy installation." image: "/media/page-assets/uploads/2026/05/adcb0c69-4758-4620-919f-d320a2ea3ac7.webp" --- # GR Home Products GR ![Product image](https://www.gerchamp.com/media/page-assets/uploads/2026/05/adcb0c69-4758-4620-919f-d320a2ea3ac7.webp) GR GR Series Low-Voltage Rack-Mounted Batteries are perfectly suited for residential buildings, villas, hotels and other small-scale commercial applications. The lightweight design of the rack-mounted LFP battery enables fast installation as well as effortless operation and maintenance. Key Features | Technical Parameter | Value / Details | | --- | --- | | High Efficiency | All new A grade LiFePO4 cells | | Space Saving | Compact rack-mounted form factor | | 6,000 Cycle Life | Long-lasting and highly cost-effective | | Expandable System | Scalable expansion up to 15 pcs in parallel | | Easy Installation | Built-in smart battery management system (BMS) | | Convenient O&M | Low maintenance requirements and high reliability | Technical Parameters Product Specifications Complete technical data and side-by-side comparison for all GR Series low-voltage battery modules. | Parameter | GR-25200 | GR-51100 | GR-51200 | GR-51314 | |---|---|---|---|---| | **ELECTRICAL SPECIFICATIONS** | - | - | - | - | | Nominal Voltage | 25.6 VDC | 51.2 VDC | 51.2 VDC | 51.2 VDC | | Nominal Capacity | 200 Ah | 100 Ah | 200 Ah | 314 Ah | | Nominal Energy | 5.12 kWh | 5.12 kWh | 10.24 kWh | 16.07 kWh | | Voltage Range | 21.6 ～ 28.8 VDC | 43.2 ～ 57.6 VDC | 43.2 ～ 57.6 VDC | 43.2 ～ 57.6 VDC | | Std. Charge/Discharge | 50 A | 50 A | 100 A | 100 A | | Max. Charge/Discharge | 100 A | 100 A | 200 A | 200 A | | Discharge Depth (DoD) | 90% | 90% | 90% | 90% | | Cycle Life | ≥ 6000 Cycles | ≥ 6000 Cycles | ≥ 6000 Cycles | ≥ 6000 Cycles | | Parallel Connection | 1 ～ 15 pcs | 1 ～ 15 pcs | 1 ～ 15 pcs | 1 ～ 15 pcs | | **MECHANICAL & PHYSICAL** | - | - | - | - | | Dimensions (W×D×H) | 484 × 420.5 × 165 mm | 484 × 420.5 × 165 mm | 484 × 630 × 235.5 mm | 484 × 775 × 235.5 mm | | Weight | 41 kg | 41 kg | 85 kg | 106 kg | | Installation | Rack-mounted | Rack-mounted | Rack-mounted | Rack-mounted | | Protection Level | IP20 | IP20 | IP20 | IP20 | | Cooling Method | Natural cooling | Natural cooling | Natural cooling | Natural cooling | | **ENVIRONMENTAL & INTERFACES** | - | - | - | - | | Operating Temp (Charge) | 0 ～ 55 °C | 0 ～ 55 °C | 0 ～ 55 °C | 0 ～ 55 °C | | Operating Temp (Discharge) | -20 ～ 55 °C | -20 ～ 55 °C | -20 ～ 55 °C | -20 ～ 55 °C | | Storage Temperature | -20 ～ 55 °C | -20 ～ 55 °C | -20 ～ 55 °C | -20 ～ 55 °C | | Display | LCD / LED Indicators | LCD / LED Indicators | LCD / LED Indicators | LCD / LED Indicators | | Communication | CAN / RS485 | CAN / RS485 | CAN / RS485 | CAN / RS485 | | Certifications | IEC62619, EN IEC61000-6-1/2/3/4, UN38.3 | IEC62619, EN IEC61000-6-1/2/3/4, UN38.3 | IEC62619, EN IEC61000-6-1/2/3/4, UN38.3 | IEC62619, EN IEC61000-6-1/2/3/4, UN38.3 | Swipe horizontally to view more parameters ↔ ### Related Content #### Related Products - [GW](https://www.gerchamp.com/en-US/products/gw) ([Agent MD](https://www.gerchamp.com/en-US/products/gw/raw.md)) - The GW series battery features a compact, lightweight, and scalable design. 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