5.12 kWh
Start here for compact indoor backup where wall space, modest loads and a smaller system footprint are priorities.
51.2 V LiFePO4 comparison
Compare 100 Ah, 314 Ah and 628 Ah solar batteries.
Choose a practical starting model by energy, installation format, current capability and project class—then confirm inverter communication and the final system design.
Published selection data
One voltage platform, three energy classes.
These values support initial evaluation. Confirm the current datasheet and ordered specification before purchase. Check battery current for 5-16.8 kW inverters →
| Selection item | 5.12 kWh51.2V-100AH | 16.076 kWhKT51.2V-314AH | 32.154 kWhKT51.2V-628AH |
|---|---|---|---|
| Nominal capacity | 100 Ah | 314 Ah | 628 Ah |
| Installation | Wall mounted | Floor standing | Floor standing |
| Communication | RS485 / CAN / Wi-Fi | CAN / RS485 | CAN / RS485 |
| Published current | 100 A maximum discharge | 200 A published charge / discharge | 300 A maximum charge / discharge |
| Published cycle life | 6,000+ cycles | 6,000+ cycles | 6,000+ cycles |
| Typical project class | Compact home backup, apartments, shops and offices | Extended home backup, off-grid homes and project storage | Large residential, commercial and long-runtime projects |
| Next step | View product →Get price → | View product →Get price → | View product →Get price → |
Quick selection logic
Match energy to the real load.
16.08 kWh
Consider this class when a home, off-grid site or project needs substantially more energy in one floor-standing battery.
32.15 kWh
Evaluate this class for long-runtime, larger residential or commercial loads after confirming current and inverter requirements.
Commercial decision guide
Choose the smallest model that meets verified energy and power requirements.
Start with the required backup energy, then reject any option that cannot meet the simultaneous load, inverter current, communication or installation constraints. Do not select only by Ah, cabinet size or the lowest initial quote.
Use 5.12 kWh for compact projects
Best starting point when wall mounting and a smaller footprint matter. Confirm that its published current limit, usable energy and permitted parallel quantity cover the load and runtime target.
Use 16.08 kWh to reduce cabinet count
A practical middle class for longer residential or off-grid backup. Compare one larger floor-standing unit with multiple smaller units, including protection, cabling and floor-space requirements.
Use 32.15 kWh for high-energy demand
Shortlist this class for larger residential or commercial projects only after checking maximum current, continuous operating limits, transport access and the exact inverter pairing.
Quote comparison checklist
Compare total project scope, not battery price alone.
No public price is stated because the final quote depends on configuration and delivery scope. Send the same inputs to every supplier so quotations can be compared on an equivalent basis.
| Quote input | Why it changes the decision | What to provide |
|---|---|---|
| Load and runtime | Determines required usable energy and discharge power. | Simultaneous kW, surge kW and backup hours |
| Inverter pairing | Sets voltage, current, protocol and firmware requirements. | Brand, exact model and quantity |
| Installation | Affects wall or floor format, cable length, protection and enclosure needs. | Indoor/outdoor location, temperature, space and access |
| Expansion plan | Changes parallel quantity, communication and protection design. | Current capacity and planned future capacity |
| Delivery scope | Changes the commercial comparison beyond the battery itself. | Destination, quantity, accessories and required documentation |
Buyer questions
Do not select on capacity alone.
Should I choose a battery by Ah or kWh?
Use kWh to compare stored energy and Ah together with nominal voltage to understand capacity. Final selection must also check load power, runtime, usable-energy limits and inverter compatibility.
Does a larger battery always provide proportionally longer backup?
Not automatically. Runtime depends on the actual load, usable depth of discharge, efficiency, reserve, temperature, current limits and system settings.
Can these 51.2 V batteries work with every 48 V inverter?
No. Confirm voltage range, charge and discharge current, BMS protocol, firmware, cables, protection and inverter settings for the selected pair.
BATTERY MATCHING SUPPORT
Send the load and backup target.
We will compare battery energy, inverter compatibility, current, communication, installation conditions and quantity.
Request Battery Selection →