---
product_id: 292286862
title: "Tecmate OptiMATE MONITOR O-127 Permanent power sport battery lead with integrated battery status/charge system monitor for 12.8/13.2V lithium."
brand: "optimate"
price: "VT13350"
currency: VUV
in_stock: true
reviews_count: 5
category: "Opti Mate"
url: https://www.desertcart.vu/products/292286862-tecmate-optimate-monitor-o-127-permanent-power-sport-battery-lead
store_origin: VU
region: Vanuatu
---

# 4 LED indicators for real-time battery & charging status 12.8/13.2V lithium battery compatible Weather-resistant SAE charging port seal Tecmate OptiMATE MONITOR O-127 Permanent power sport battery lead with integrated battery status/charge system monitor for 12.8/13.2V lithium.

**Brand:** optimate
**Price:** VT13350
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay Powered, Stay Ahead – Never Guess Your Battery Status Again!

## Quick Answers

- **What is this?** Tecmate OptiMATE MONITOR O-127 Permanent power sport battery lead with integrated battery status/charge system monitor for 12.8/13.2V lithium. by optimate
- **How much does it cost?** VT13350 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/292286862-tecmate-optimate-monitor-o-127-permanent-power-sport-battery-lead)

## Best For

- optimate enthusiasts

## Why This Product

- Trusted optimate brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Weatherproof SAE port and backed by a 3-year limited warranty
- • **Dual Operating Modes:** Switch between battery charge level monitor and vehicle charging system test
- • **Overcharge Alert System:** 4th LED warns of overcharging to protect your battery and vehicle
- • **Plug & Play Convenience:** Quick 3-minute installation with durable 24-inch lead and 15A fuse
- • **Instant Battery Health Check:** 3 LEDs display voltage range from full to empty for lithium batteries

## Overview

The Tecmate OptiMATE MONITOR O-127 is a premium 24-inch permanent power lead designed for 12.8/13.2V lithium sport batteries. Featuring 4 intuitive LED indicators, it provides real-time voltage and charging system status, including overcharge alerts. Its weather-resistant SAE socket and robust build ensure durability, while the dual-mode operation offers both battery level monitoring and charging system diagnostics. Easy to install and backed by a 3-year warranty, it’s the essential tool for proactive battery management in motorsports and beyond.

## Description

MONITOR 127 LITHIUM BATTERY SAE SOCKET

Review: Exactly what I needed. Took all of 3 minutes to install and makes keeping the batter charged super easy. Pull up in the garage and just plug it in. When I'm ready to go I just unplug it and let it hang under the seat, just inside the frame. The build quality is far better than I expected for the price and the colored lights letting you know the status are a nice touch.
Review: Einfach zu installieren und eine große Hilfe um zu erkennen ob die Batterie geladen werden muss

## Features

- Keep an eye on the Ladung mounted motor sports Lithium Battery and check whether the vehicle's charging system works correctly.
- '3 LEDs shows the voltage range (solid to empty "when 12,8 V/13,2 V Lithium batteries (LFP/LiFePO4/Lithium Nano); 4. LED alerts when overcharging due to the car systems or the connected battery charger.
- 2 operating modes – Battery Charging Level Monitor (individual LED light flashes) and loading system test (arrow mode).
- Length = 24 inch/60 cm, 15 A Fuse, 1/4 inch/M6 eyelets.
- SAE charging port with weather-resistant seal lid. 3 year limited warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00Y38X8WW |
| Best Sellers Rank | #209,755 in Automotive ( See Top 100 in Automotive ) #220 in Automotive Battery Testers |
| Brand | OptiMate |
| Customer Reviews | 4.8 4.8 out of 5 stars (225) |
| Date First Available | 2 February 2016 |
| Item Weight | 90 g |
| Item model number | O-127 |
| Manufacturer | Optimate |
| Manufacturer Part Number | O-127 |
| Model | O127 |
| Product Dimensions | 19.61 x 13.79 x 5 cm; 90 g |

## Images

![Tecmate OptiMATE MONITOR O-127 Permanent power sport battery lead with integrated battery status/charge system monitor for 12.8/13.2V lithium. - Image 1](https://m.media-amazon.com/images/I/51nB4B0JrXL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***Z on 18 August 2025*

Exactly what I needed. Took all of 3 minutes to install and makes keeping the batter charged super easy. Pull up in the garage and just plug it in. When I'm ready to go I just unplug it and let it hang under the seat, just inside the frame. The build quality is far better than I expected for the price and the colored lights letting you know the status are a nice touch.

### ⭐⭐⭐⭐⭐ Review
*by S***N on 13 December 2025*

Einfach zu installieren und eine große Hilfe um zu erkennen ob die Batterie geladen werden muss

### ⭐⭐⭐⭐ Review
*by S***E on 26 December 2025*

Bien

## Frequently Bought Together

- Optimate cable O-127 ring terminal harness with integrated battery status / charge system monitor, 12.8V / 13.2V lithium powersport, smart
- OptiMATE Lithium 4s 0.8A, TM-471, 8-step 12.8V 0.8A sealed battery saving charger & maintainer

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vu/products/292286862-tecmate-optimate-monitor-o-127-permanent-power-sport-battery-lead](https://www.desertcart.vu/products/292286862-tecmate-optimate-monitor-o-127-permanent-power-sport-battery-lead)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-17*