Checked as 4 packs, the most this battery’s published parallel limit allows. Meeting the inverter’s 250 amp charge current would take 5, so the charge rate has to be capped in inverter settings.
Full specifications: LuxPower LXP-LB-US 12K and LiTime 48V 100Ah.
The four checks
Voltage window: Overlapping window 40 to 58.4 V
The inverter operates from 40 to 60 volts and the battery cuts off outside 40 to 58.4 volts. Both stay inside 40 to 58.4 volts, which covers a normal LiFePO4 charge and discharge cycle with margin at both ends.
Charge current: Limit the charger to 200 A
The inverter will deliver up to 250 amps and this battery accepts 200 amps at the bank size shown above, which is already as many packs as the manufacturer’s published parallel limit allows. Cap the charge current at 200 amps in inverter settings. It stays a conflict because a default install pushes past what the BMS permits and the pack protects itself by disconnecting.
Surge rating: Battery surge figure unpublished
A surge to 18000 watts draws roughly 375 amps at 48 volts. This battery publishes a 400 amp continuous rating and no separate surge figure, and continuous is the wrong number to check a motor start against. Confirm the peak rating and its duration with the manufacturer before running motor loads.
Closed-loop communication: Battery publishes no protocol
The inverter speaks CAN, RS485. This battery publishes no communication protocol, so closed loop is not on the table and the pairing runs on voltage limits set by hand. Confirm with the manufacturer that no port exists before assuming it.
What this means when you install it
Set the inverter charge current to 200 amps or less. That is what this bank accepts, below what the inverter would deliver at defaults. Protect the battery run with a 350 amp Class T fuse and two parallel runs of 2/0 cable wired to a busbar rather than daisy chained, so all 4 packs share current evenly.
The inverter speaks CAN, RS485. This battery publishes no communication protocol, so closed loop is not on the table and the pairing runs on voltage limits set by hand. Confirm with the manufacturer that no port exists before assuming it.
Figures side by side
| Field | LuxPower LXP-LB-US 12K | LiTime 48V 100Ah |
|---|---|---|
| Voltage window | 40 to 60 V | 40.0 to 58.4 V |
| Charge current | 250 A delivered | 200 A accepted (4 packs) |
| Peak draw | 18,000 W surge | surge unpublished |
| Usable capacity | n/a | 20.48 kWh (4 packs) |
| Comms | CAN, RS485 | none |
Manufacturer documents
Manufacturer documents: LuxPower download centre. Figures here should be read against the revision that covers your serial number, because manufacturers revise specifications without changing the model name.
Manufacturer documents: LiTime product pages. 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.
LuxPower LXP-LB-US 12K on AmazonLiTime 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 LiTime 48V 100Ah
EG4 6000XP with LiTime 48V 100Ah
Partial match, some fields unverified.
Growatt SPF 5000 ES with LiTime 48V 100Ah
Partial match, some fields unverified.
EG4 18KPV with LiTime 48V 100Ah
Specs conflict on at least one field.
EG4 FlexBoss21 with LiTime 48V 100Ah
Specs conflict on at least one field.
Questions people actually ask
Will the LuxPower LXP-LB-US 12K work with the LiTime 48V 100Ah?
Specs conflict on at least one field. Checked as 4 packs, the most this battery’s published parallel limit allows. Meeting the inverter’s 250 amp charge current would take 5, so the charge rate has to be capped in inverter settings. The four checks below show which field produced that result.
What does this pairing cost to wire up?
Beyond the two units, a 350 amp Class T fuse and holder, two parallel runs of 2/0 battery cable cut to matched lengths, and a busbar if you are running 4 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 speaks CAN, RS485. This battery publishes no communication protocol, so closed loop is not on the table and the pairing runs on voltage limits set by hand. Confirm with the manufacturer that no port exists before assuming it.
What charge current should I set?
The inverter will deliver up to 250 amps and this battery accepts 200 amps at the bank size shown above, which is already as many packs as the manufacturer’s published parallel limit allows. Cap the charge current at 200 amps in inverter settings. It stays a conflict because a default install pushes past what the BMS permits and the pack protects itself by disconnecting.