OptiMate MONITOR O-125

MSRP $17.95

Battery status / charge system monitor for 12V lead-acid & 12.8V lithium-ion, with in-line SAE connectability.

SAE to SAE adapter with state of charge monitor that connects directly to the SAE battery lead fitted to the 12V battery in your parked powersport vehicle.
The SAE to SAE adapter is recommended for motorcycles, side by side UTV and ATV.


Ideal for 12V lead-acid & 12.8V lithium LFP (LiFePO4) batteries.
The SAE to SAE adapter is ideal for 12V lead-acid & 12.8V lithium LFP batteries.


SAE quick connect charge port for charging battery when needed!
This cable is SAE to SAE.


SAE connection system fits any SAE standard 2-pin connector, includes in-line seal that mates with OptiMate SAE Premium quality!
The SAE to SAE adapter connection system fits any SAE standard 2-pin connector.




With weatherproof sealing cap. The weatherproof cap protects the SAE connection against dirt and water.

Battery status indication every 3 seconds (LED blinks).
Battery status indication for high performance AGM.
Battery status indication for lithium-ion LFP.


Coming soon.

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SKU: O-125

SKU: O-125

SKU: O-125

SKU: O-125


Smart battery lead that measures voltage; monitors charge of a stored 12V lead-acid & 12.8V lithium-ion battery and confirms if the vehicle charging system is working correctly.

LENGTH: 6″/15cm


CHARGE CONNECTOR: 2-pin SAE, protected from dirt and liquid with rubber sealing cap & shroud.

OPERATION: 2 automatic Modes – Battery charge level monitor (single LED blink mode) & Charging system test (arrow mode).

  • Vehicle storage: 4 LEDs cover ‘full to empty’ voltage range of all 12V batteries, including higher voltage AGM for power sport (3th  LED ≥ 12.7V). LED matching charge level blinks every 3 seconds (long term draw less than 0.2mA).
  • Vehicle running: LED arrow mode activates when charge voltage reaches ideal charging voltage; up to minimum 13.5V or ideal range 14V+.


CABLE RATING: 16AWG (1.31mm2) SPT-2W

USE: -40°C/-40°F very low temperature, remains flexible at ‘below freezing’ temperatures

STYLE: Fully enclosed electronic circuitry with 4 LEDs, SAE charge connector with rubber sealing cap & shroud

WARRANTY: 3-year limited replacement warranty


Version 1 

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