PRODUCT DETAILS
The Go Power! Battery Monitor Kit (GP-BMK-25) tells you how much battery you really have. A 500A shunt on the battery negative measures every amp going in and out, and the backlit display turns it into state of charge, remaining capacity, voltage, current and time left at your current draw — so you know whether you'll make it through the night before the lights dim.
Works with any battery bank
Lithium, AGM, gel or flooded; 12V, 24V or 48V. The monitor covers 10–120 VDC systems and bank sizes from 0.1 to 999 Ah. Set your bank capacity once and calibrate on the first full charge.
Alarms before it's a problem
Set a low-voltage alarm and a low-capacity alarm; the display flashes and a buzzer sounds when either is reached. A two-battery voltage display keeps an eye on a second battery too.
Clean flush-mount install
The 3.9 × 2.4 in display clips into a cut-out in a wall or cabinet face (template in the manual). The shunt mounts in the battery bay on its bracket and connects to the display with the included cable, so the only wiring at the battery is the shunt on the negative and a fused positive lead.
Already running PowerTrak™?
If your RV has a Go Power! PowerTrak™ display or you want battery data on the same screen as your solar and inverter, see the Battery Manager Kit (GP-BMG) instead.
FEATURES
- State of charge, capacity, voltage, current and time remaining at a glance.
- Two-battery voltage display.
- Low-voltage and low-capacity alarms — flashing display plus buzzer.
- 500A / 50mV quick-connect shunt with mounting bracket.
- 25 ft display cable and fused positive lead included.
- All battery types — lithium, AGM, gel, flooded; 10–120 VDC; 0.1–999 Ah banks.
- Backlit, flush-mount display, adjustable brightness.
- 3-year limited warranty.
WHAT IT RUNS
SPECIFICATIONS
- Length:
- Width:
- Height:
| Model | GP-BMK-25 (item 82958) |
|---|---|
| Working voltage | 10–120 VDC |
| Battery bank capacity | 0.1–999 Ah |
| Shunt | 500A / 50mV |
| Working draw | 10–15 mA |
| Standby draw | 1–2 mA |
| Accuracy | Voltage, current and capacity ±1.0% |
| Operating temperature | −10 to 60°C (14 to 140°F) |
| Display mounting | Flush mount |
| Display dimensions | 3.9 × 2.4 × 0.7 in (99 × 61 × 18 mm) |
| Weight | Display 0.1 lb (75 g); package 1.5 lb (680 g) |
| Included | Display, 500A shunt with bracket, display cable (RJ12), fused positive lead |
| Sense wire for install | 28–20 AWG (0.3–0.75 mm²), sold separately |
| Warranty | 3 years limited |
COMPARE MODELS
MANUALS, SAFETY INFORMATION AND DOWNLOADS
ACCESSORIES
FAQ
Does it work with lithium batteries?
Yes. It works with lithium, AGM, gel and flooded batteries. Enter your bank's capacity and calibrate on the first full charge.
Will it work on a 24V or 48V system?
Yes. The working range is 10–120 VDC.
How large a battery bank can it monitor?
From 0.1 Ah up to 999 Ah, with the included 500A shunt.
Where does the shunt go?
On the battery negative. All loads and charge sources must connect through the shunt's load side, with nothing else on the battery negative, so every amp is counted. The manual has the wiring diagram.
How is the display mounted?
It's a flush mount. Cut a hole using the template in the manual and the display clips in place.
Battery Monitor Kit or Battery Manager Kit?
The Battery Monitor Kit is a standalone monitor with its own display. If you have, or want, a Go Power! PowerTrak™ display that also shows solar and inverter status, choose the Battery Manager Kit (GP-BMG).
What's the warranty?
3 years limited.