Partly checked
COTEK SL2000-112 + Rich Solar RS-B1220
- Voltage matches: the 12.8 V battery suits this 12 V inverter.
- Can't check battery communication yet: the inverter's communication links aren't on file and the battery's communication links aren't on file.
Checked automatically against spec sheets. Not yet confirmed in a real install. Last checked 2026-10-14. We don't track firmware versions.
Size the battery cable and fuse for this pair in the build tool, from your run length.
Published limits, side by side
| Spec | COTEK SL2000-112 | Rich Solar RS-B1220 |
|---|---|---|
| Voltage | 12 V accepts 9–17 V | 12.8 V |
| Current | Max battery current 267 A | Max charge 20 A Max output 30 A |
| Communication | None listed | None listed |
| Cable connection | Stud size Not published | Terminal M6 |
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 267 A. This battery is rated for 20 A charging and 30 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 (M6).
- 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
COTEK SL2000-112
- No store links yet. The maker's site is below.
- COTEK (maker)
Rich Solar RS-B1220
- No store links yet. The maker's site is below.
- Rich Solar (maker)
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