Don’t just buy any battery—no matter how large the capacity, if it’s incompatible with your inverter, it’s a waste of money. Before installing a PVBAT LiFePO4 battery, you must perform these 7 checks.
1. Voltage Matching (Most Basic)
Common household battery voltages: 48V/51.2V. Verify:
Battery rated voltage
Inverter input voltage range
Charge/discharge cut-off voltage
Maximum charge/discharge current
2. Communication Protocol (Smart Integration)
Common: CAN/RS485
With communication: The inverter can read battery level, temperature, and fault codes, providing safer protection.
Without communication: It may still function, but you lose smart protection, which is high-risk.
3. Inverter Power Rating (How Many Devices It Can Support)
Continuous power: For everyday use
Peak power: For the moment devices start up
120V/240V Phase-Split: Essential for U.S. homes
Off-Grid Mode: Backup during power outages
Parallel Expansion: Add batteries later
4. Battery Parallel Connection (Future Expansion)
Confirm: Supports parallel connection; maximum number of parallel units. For example, if 20.48 kWh is insufficient, multiple sets can be paralleled to reach 40 kWh+, suitable for heavy loads or off-grid use.
5. Pre-installation Checklist (Check off as you go)
Does the inverter support 48V/51.2V?
Do the batteries and inverter use the same communication protocol?
Does the inverter support the local voltage (120V/240V)?
Is the battery’s discharge capacity sufficient for your home’s maximum load?
Do you plan to expand capacity by adding more batteries in the future?
Are there official wiring diagrams and parameter settings available?
Has a professional installer confirmed the installation plan?
6. Official Compatibility List (Recommended to be posted on the official website)
Table
Inverter Brand / Model Voltage Match Communication Protocol Status Remarks
Brand A Model X 48V/51.2V CAN Tested Set parameters according to manual
Brand B Model Y 48V/51.2V RS485 Compatible Select corresponding protocol
Brand C Model Z To be confirmed To be confirmed Under testing Contact technical support
7. Summary in a nutshell
When buying batteries, check compatibility first, then capacity. Voltage, communication, power, and parallel connection—if these four factors match, the system will be stable after installation.
