Needs manual setup
Growatt SPE 12000 US + Renogy RBT4850LFPSH
- Voltage matches: the 48 V battery suits this 48 V inverter.
- The inverter maker doesn't list this battery for closed-loop communication. The battery maker says it can run without communication, so you enter its charge settings on the inverter by hand.
Checked automatically against spec sheets. Not yet confirmed in a real install. Last checked 2026-10-12. We don't track firmware versions.
Size the battery cable and fuse for this pair in the build tool, from your run length.
What you'll set up yourself
-
Enter the battery's charge settings on the inverter by hand, in the battery
settings described in the inverter's manual.
- Max charge current: no more than 50 A per battery, from the battery's spec sheet.
- Charge voltage, float voltage, and low-voltage cutoff: from the Renogy RBT4850LFPSH manual.
Published limits, side by side
| Spec | Growatt SPE 12000 US | Renogy RBT4850LFPSH |
|---|---|---|
| Voltage | 48 V accepts 46–60 V | 48 V |
| Current | Max battery current 280 A | Max charge 50 A Max output 50 A Peak output 100 A |
| Communication | Growatt SPF/SPE closed loop | Open loop (no comms) |
| Cable connection | Stud size Not published | Terminal M8 |
Values come from each maker's documents. "Not published" means the maker doesn't state it.
Confirm with the makers before you buy
- Whether one battery can take the inverter's full current. The inverter's max battery current is 280 A. This battery is rated for 50 A charging and 50 A output. Ask how many batteries to run in parallel.
- Which firmware versions support this pairing. We don't track firmware.
- That your cable lugs fit the inverter's battery studs (Not published) and the battery's terminals (M8).
- How to install both safely, from each maker's manual and your local code.
This result checks two things: the battery's voltage suits the inverter, and the inverter maker lists this battery for closed-loop communication (the battery tells the inverter how to charge it). It doesn't check current limits, charge settings, firmware, cable sizes, or safe installation. Confirm those with both makers before you buy.
Sources
This result comes from the documents below. We haven't yet found an outside source that confirms it, such as a forum report or a video of a real install.
Where to buy
Growatt SPE 12000 US
- No store links yet. The maker's site is below.
- Growatt (maker)
Renogy RBT4850LFPSH
- No store links yet. The maker's site is below.
- Renogy (maker)
Spot a mistake? Email errata@offgridstacks.com with this page's link.