Checked as a single pack, which covers this inverter’s charge current on its own.
Full specifications: OutBack Radian GS8048A and Discover AES 42-48-6650.
The four checks
Voltage window: Overlapping window 42 to 57.6 V
The inverter operates from 40 to 64 volts and the battery cuts off outside 42 to 57.6 volts. Both stay inside 42 to 57.6 volts, which covers a normal LiFePO4 charge and discharge cycle with margin at both ends.
Charge current: 130 A into a 130 A limit
The inverter tops out at 130 amps and the battery accepts 130 amps, so a default install cannot overrun the pack. Adding batteries in parallel raises the accepted current further.
Surge rating: Battery surge figure unpublished
A surge to 12000 watts draws roughly 250 amps at 48 volts. This battery publishes a 130 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: Named in a manufacturer document
A manufacturer document names this exact pairing for closed-loop operation over Modbus. That is the only evidence this site accepts for a match on this check. Select the matching protocol profile in the inverter menu during commissioning.
What this means when you install it
Set the inverter charge current to 130 amps or less. That is the inverter maximum, which this bank can absorb. Protect the battery run with a 250 amp Class T fuse and 4/0 AWG cable.
A manufacturer document names this exact pairing for closed-loop operation over Modbus. That is the only evidence this site accepts for a match on this check. Select the matching protocol profile in the inverter menu during commissioning.
Figures side by side
| Field | OutBack Radian GS8048A | Discover AES 42-48-6650 |
|---|---|---|
| Voltage window | 40 to 64 V | 42.0 to 57.6 V |
| Charge current | 130 A delivered | 130 A accepted |
| Peak draw | 12,000 W surge | surge unpublished |
| Usable capacity | n/a | 6.65 kWh |
| Comms | Modbus | CAN, Modbus |
Manufacturer documents
Manufacturer documents: OutBack Power documentation. Figures here should be read against the revision that covers your serial number, because manufacturers revise specifications without changing the model name.
Manufacturer documents: Discover Battery documentation. 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.
OutBack Radian GS8048A on AmazonDiscover AES 42-48-6650 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 Discover AES 42-48-6650
EG4 6000XP with Discover AES 42-48-6650
Partial match, some fields unverified.
EG4 18KPV with Discover AES 42-48-6650
Partial match, some fields unverified.
EG4 FlexBoss21 with Discover AES 42-48-6650
Partial match, some fields unverified.
Sol-Ark 12K with Discover AES 42-48-6650
Partial match, some fields unverified.
Questions people actually ask
Will the OutBack Radian GS8048A work with the Discover AES 42-48-6650?
Partial match, some fields unverified. 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 250 amp Class T fuse and holder, 4/0 AWG 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?
A manufacturer document names this exact pairing for closed-loop operation over Modbus. That is the only evidence this site accepts for a match on this check. Select the matching protocol profile in the inverter menu during commissioning.
What charge current should I set?
The inverter tops out at 130 amps and the battery accepts 130 amps, so a default install cannot overrun the pack. Adding batteries in parallel raises the accepted current further.