WHOLE-HOME RESIDENTIAL STORAGE
15.07 kWh / 16.08 kWh floor-standing LiFePO4 batteries
Two documented 314 Ah platforms for 48 V and 51.2 V inverter architectures, whole-home backup and higher daily solar utilization.
Technical comparison
| Parameter | GM-LV-15.07 | GM-LV-16.08 |
|---|---|---|
| Nominal energy | 15.07 kWh | 16.08 kWh |
| Nominal voltage | 48 V | 51.2 V |
| Rated capacity | 314 Ah | 314 Ah |
| Charge voltage | 54.75 V | 58.4 V |
| Maximum charge current | 100 A | 100 A |
| Maximum discharge current | 200 A | 200 A |
| Communication | CAN / RS485 / RS232 / dry contact | CAN / RS485 / RS232 / dry contact |
| Dimensions | 925 × 500 × 315 mm | 925 × 500 × 315 mm |
| Approximate weight | 115 kg | 133 kg |
The quotation and matching datasheet confirm the supplied model, accessories, warranty and delivery terms.
Integrated battery management
Overcharge, over-discharge, overcurrent and short-circuit protection.
Charge and discharge temperature monitoring and protective control.
CAN and RS485 inverter interfaces with address and parallel-network functions.
Display, SOC, RUN/ALM indicators, reset and main switch.
Confirm these items before ordering
Exact brand, model, firmware and protocol.
Charge/discharge current, voltage and temperature.
Manual, transport and market-compliance files.
Warranty, OEM, packing, lead time and quantity.
Choose the correct 48 V or 51.2 V platform.
Send your inverter model and required backup time for a configured proposal.
Additional electrical and environmental data
| Specification | 48 V / 314 Ah | 51.2 V / 314 Ah |
|---|---|---|
| Pack arrangement | 15S1P | 16S1P |
| Discharge cutoff in reference specification | 37.5 V | 40 V |
| Standard charge / discharge current | 100 A / 100 A | 100 A / 100 A |
| Charging temperature | 0 to 55°C | 0 to 55°C |
| Discharging temperature | −20 to 65°C | −20 to 65°C |
| Nominal DC power at 100 A, calculated | 4.8 kW | 5.12 kW |
| Nominal DC power at 200 A, calculated | 9.6 kW | 10.24 kW |
Temperature ranges and cutoff values describe the reference pack, not recommended inverter settings. Output varies with voltage, SOC, temperature and BMS limits; the calculated DC power is not a guaranteed AC output rating. Confirm installation clearances and orientation against the approved drawing.
Which 314 Ah platform should you choose?
Choose the voltage architecture first. The 48 V pack has 15 cells in series and the 51.2 V pack has 16. Their charge and discharge voltage boundaries differ. Give the installer the exact inverter model and battery specification rather than selecting by the marketing label “48 V lithium”.
The 16.08 kWh platform stores approximately 6.7% more nominal energy than the 15.07 kWh platform. At a constant 2 kW load, using an illustrative 90% SOC window and 90% conversion efficiency, estimated runtime is about 6.5 versus 6.1 hours. These are planning calculations, not runtime guarantees.
Installation and handover
- Plan equipment access and handling for approximately 115 or 133 kg, and confirm floor suitability with the installer.
- Identify positive, negative, earth, communication and address connections from the model-specific manual.
- Record inverter firmware, protocol selection, charge limits, discharge limits and initial alarms during commissioning.
- Retain the serial number, installation photos and accepted settings for support and repeat orders.
Documents to match to your order
Request the pack datasheet revision, dimension drawing, connection diagram, inverter validation record, applicable transport documents and written warranty. The supplied reference files do not establish a universal cycle-life guarantee, outdoor IP rating or warranty term for every Graspmart configuration.
Questions buyers ask
Are 15.07 and 16.08 kWh interchangeable?
They use different series-cell counts and voltage limits. Do not substitute them without checking the inverter battery window and settings.
Can it charge below freezing?
The reviewed reference pack specifies charging from 0°C. Sub-zero charging must not be assumed; any heating option requires a separate approved specification.
Can I mix different battery models in parallel?
Do not assume this is supported. Confirm identical approved hardware, firmware, wiring and parallel control requirements before expansion.
Get a proposal for your home battery project
Send your country, inverter model, expected quantity and backup requirement. Include any compulsory documentation and delivery dates so the quotation can address them.