Checked as a single pack, which covers this inverter’s charge current on its own.
Full specifications: Sol-Ark 30K-3P and EG4 LifePower4 48V 100Ah.
The four checks
Voltage window: No usable overlap
The inverter window of 150 to 950 volts and the battery window of 44.8 to 58.4 volts do not overlap usefully. One unit reaches its limit while the other is still in normal operation.
Charge current: 100 A into a 100 A limit
The inverter tops out at 100 amps and the battery accepts 100 amps, so a default install cannot overrun the pack. Adding batteries in parallel raises the accepted current further.
Surge rating: Peak draw 938 A exceeds 200 A
A full surge to 45000 watts pulls roughly 938 amps, past this battery’s 200 amp surge rating for 5 s. The BMS is the thing that stops it, which means a motor start can drop the whole system rather than just dimming the lights. Adding a second pack in parallel is the usual fix.
Closed-loop communication: Both speak CAN, RS485, no document names the pair
The inverter and the battery both support CAN, RS485. Neither manufacturer publishes a document naming the other unit, and a shared bus standard is not a shared message format. It may well work on the bench. Confirm the protocol setting with both manufacturers before relying on BMS control.
What this means when you install it
Set the inverter charge current to 100 amps or less. That is the inverter maximum, which this bank can absorb. Protect the battery run with a 500 amp Class T fuse and two parallel runs of 4/0 cable.
The inverter and the battery both support CAN, RS485. Neither manufacturer publishes a document naming the other unit, and a shared bus standard is not a shared message format. It may well work on the bench. Confirm the protocol setting with both manufacturers before relying on BMS control.
Figures side by side
| Field | Sol-Ark 30K-3P | EG4 LifePower4 48V 100Ah |
|---|---|---|
| Voltage window | 150 to 950 V | 44.8 to 58.4 V |
| Charge current | 100 A delivered | 100 A accepted |
| Peak draw | 45,000 W surge | 200 A surge |
| Usable capacity | n/a | 5.12 kWh |
| Comms | CAN, RS485 | CAN, RS485 |
Manufacturer documents
Manufacturer documents: Sol-Ark resources and manuals. Figures here should be read against the revision that covers your serial number, because manufacturers revise specifications without changing the model name.
Manufacturer documents: EG4 product and document library. Figures here should be read against the revision that covers your serial number, because manufacturers revise specifications without changing the model name.
Both units, current pricing
Prices on these move week to week, and the battery is usually the line item worth watching.
Sol-Ark 30K-3P on AmazonEG4 LifePower4 48V 100Ah on AmazonComms cableAffiliate links. As an Amazon Associate this site earns from qualifying purchases, at no extra cost to you. Prices and stock change often, and a listing appearing here is not a statement that the pairing above is approved.
Other pairings for the EG4 LifePower4 48V 100Ah
EG4 6000XP with EG4 LifePower4 48V 100Ah
Specs align on every checked field.
EG4 18KPV with EG4 LifePower4 48V 100Ah
Specs align on every checked field.
Sol-Ark 12K with EG4 LifePower4 48V 100Ah
Partial match, some fields unverified.
Victron MultiPlus-II 48/5000 with EG4 LifePower4 48V 100Ah
Partial match, some fields unverified.
Questions people actually ask
Will the Sol-Ark 30K-3P work with the EG4 LifePower4 48V 100Ah?
Specs conflict on at least one field. Checked as a single pack, which covers this inverter’s charge current on its own. The four checks below show which field produced that result.
What does this pairing cost to wire up?
Beyond the two units, a 500 amp Class T fuse and holder, two parallel runs of 4/0 battery cable cut to matched lengths, and a busbar if you are running 1 packs. A comms cable if you intend to attempt closed loop, and the pinout is rarely the same between brands.
Where does this pairing go wrong in practice?
The inverter and the battery both support CAN, RS485. Neither manufacturer publishes a document naming the other unit, and a shared bus standard is not a shared message format. It may well work on the bench. Confirm the protocol setting with both manufacturers before relying on BMS control.
What charge current should I set?
The inverter tops out at 100 amps and the battery accepts 100 amps, so a default install cannot overrun the pack. Adding batteries in parallel raises the accepted current further.