DIRECTORY / BATTERY & STORAGE
Indevolt PFA4000 Expansion Battery
Indevolt
Explore the Indevolt PFA4000 4kWh LiFePOâ‚„ expansion battery, BatteryFlex compatibility and key manufacturer specifications.
Full Technical Specifications
Model Number
PFA4000
Category
Expansion Batteries
Product Type
Battery Chemistry
LiFePOâ‚„
Nominal Capacity (kWh)
4
Usable Capacity (kWh)
Max Expandable Capacity (kWh)
Expansion Battery Compatibility
Continuous AC Output (W)
Peak AC Output (W)
AC Charging Input (W)
Max Solar Input (W)
MPPT Channels
Solar Input Voltage Range (V)
Grid / AC Charging
AC Output / Backup
Expansion battery module; no standalone AC output specified
EPS / UPS
App & Monitoring
Smart Meter
Plug-in Solar
Used as expansion storage in compatible Indevolt systems; not a standalone plug-in solar inverter
UK Availability
Listed on Indevolt UK website
Warranty
10 years
Product Overview
4.0kWh LiFePOâ‚„ expansion battery module. Indevolt's hardware model documentation identifies PFA4000 as a 4,000Wh battery module. UK product information describes BatteryFlex compatibility, mixed-capacity expansion and up to 10,000 cycles.
Additional Notes
This is an expansion battery, not a standalone inverter or complete plug-in solar system. Confirm compatible host models and operating limits before publishing a compatibility claim.
Official Manufacturer Sources
https://docs.indevolt.com/docs/hardware/overview/product-models/
EVIDENCE RATING
High — official manufacturer product listing and model documentation
RETAILER
LAST VERIFIED
November 8, 2026
November 8, 2026
Expansion battery module
BatteryFlex compatible; exact supported host models and firmware/configuration should be checked