51.2 V LiFePO4 comparison

Compare 100 Ah, 200 Ah, 314 Ah, 628 Ah and 684 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, five 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 item5.12 kWh51.2V-100AH10.24 kWh51.2V-200AH16.076 kWhKT51.2V-314AH32.154 kWhKT51.2V-628AH35.02 kWhL48684-M
Nominal capacity100 Ah200 Ah314 Ah628 Ah684 Ah
InstallationWall mountedFloor standingFloor standingFloor standingFloor standing
CommunicationRS485 / CAN / Wi-FiCAN / RS485CAN / RS485CAN / RS485CAN / RS232 / RS485 / Wi-Fi / Bluetooth
Published current100 A maximum discharge200 A maximum continuous discharge200 A published charge / discharge300 A maximum charge / discharge300 A maximum continuous discharge
Published cycle life6,000+ cyclesConfirm for ordered model6,000 cycles6,000+ cyclesConfirm for ordered model
Typical project classCompact home backup, apartments, shops and officesHome backup, off-grid homes, shops and expandable storageExtended home backup, off-grid homes and project storageLarge residential, commercial and long-runtime projectsExtended backup, high-energy off-grid and small commercial systems
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Quick selection logic

Match energy to the real load.

01

5.12 kWh

Start here for compact indoor backup where wall space, modest loads and a smaller system footprint are priorities.

02

10.24 kWh

Choose a practical floor-standing battery for home backup, off-grid systems and expandable projects requiring CAN or RS485 communication.

03

16.08 kWh

Consider this class when a home, off-grid site or project needs substantially more energy in one floor-standing battery.

04

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.

01

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.

02

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.

03

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 inputWhy it changes the decisionWhat to provide
Load and runtimeDetermines required usable energy and discharge power.Simultaneous kW, surge kW and backup hours
Inverter pairingSets voltage, current, protocol and firmware requirements.Brand, exact model and quantity
InstallationAffects wall or floor format, cable length, protection and enclosure needs.Indoor/outdoor location, temperature, space and access
Expansion planChanges parallel quantity, communication and protection design.Current capacity and planned future capacity
Delivery scopeChanges the commercial comparison beyond the battery itself.Destination, quantity, accessories and required documentation

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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.

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