---
product_id: 78347764
title: "USB O-108, 3300mA USB charger with battery auto protect off, weatherproof, SAE, in & out cables"
brand: "optimate"
price: "€ 63.63"
currency: EUR
in_stock: true
reviews_count: 13
category: "Opti Mate"
url: https://www.desertcart.it/products/78347764-usb-o-108-3300ma-usb-charger-with-battery-auto-protect
store_origin: IT
region: Italy
---

# 3.3A fast charge auto battery drain protection weatherproof sealed design USB O-108, 3300mA USB charger with battery auto protect off, weatherproof, SAE, in & out cables

**Brand:** optimate
**Price:** € 63.63
**Availability:** ✅ In Stock

## Summary

> 🔌 Charge smarter, ride farther — never miss a beat on the road!

## Quick Answers

- **What is this?** USB O-108, 3300mA USB charger with battery auto protect off, weatherproof, SAE, in & out cables by optimate
- **How much does it cost?** € 63.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/78347764-usb-o-108-3300ma-usb-charger-with-battery-auto-protect)

## 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

- • **Power Up at 3.3 Amps ⚡:** Rapid USB charging for all your devices, faster than standard 2.1A chargers.
- • **Flexible 80-Inch Reach 🚀:** Long 200cm cable routes easily to your handlebar, tank, or pannier for convenient device charging on the go.
- • **Smart Battery Guardian 🔋:** Auto shutoff protects your vehicle’s battery from draining when parked—no manual switches needed.
- • **Built to Brave the Elements 🌧️:** Fully sealed, weatherproof SAE to USB cable lets you charge confidently in rain or shine.
- • **Clean, Professional Install 🛠️:** Mid-cable bulky circuitry hides discreetly for a sleek setup with integrated zip-tie slot for secure mounting.

## Overview

The OptiMATE USB O-108 is a premium 3.3A USB charger designed for motorcycles and outdoor use, featuring a fully weatherproof SAE to USB cable with 80-inch reach. It intelligently adapts charging current to your device and includes an auto shutoff to prevent battery drain when your vehicle is parked. Built for durability and ease of installation, it’s the go-to solution for professionals who demand reliable power on the move.

## Description

Charge your phone, GPS, camera & tablet with your weatherproof charger, on your motorcycle or up to 80″ / 200cm away from 12V supply.

Review: Best design on the market! - Best I've seen on the market: - 3.3a: plenty of current to charge newer phones vs most are only 2.1a - auto shutoff to avoid draining your battery without having a manual switch, only one on the market I've seen that has auto shutoff - the circuitry / bulky part of the cable is in the middle of the cable so it can be easily hidden with a smaller wire that runs to the USB port, most of the rest put the bulky circuitry around the USB port which makes it harder to cleanly install and requires a larger cable run to your phone. - integrated slot to easily zip tie the USB port in place - well made / high quality / reputable company
Review: Works as intended - I have this hooked up on my Himalayan and simply ran the line underneath the tank to the existing SAE adapter I have on my battery. When I need to charge my phone while riding, I simply plug this into my SAE plug and then plug the USB into my phone's cable - job done. It has worked very well and seems to be of a much higher quality construction than some of the cheaper Chinese ones that I tried before this that either never worked or broke soon after using. So far this one is going strong and it's definitely waterproof.

## Features

- The fully sealed in-line SAE to USB 3300mA charger with 200cm / 80" of cable, delivers safe and fast USB charging of any device monted outside on the handlebar or inside your tank or pannier - Cable routes to where USB charging is needed!
- Connects to battery lead with industry standard SAE 2-pin connector - In-line seal makes 12V connection weatherproof!
- Charges 1x USB device with up to 3300mA current available (or get optional O-110 USB splitter and charge 2 devices). Charge current adapts to connected device for safe recharging.
- Weatherproof USB charge port easily zip-tie to handlebar, strut or even brake / clutch cable - Seals against inserted USB cable for charging in any weather!
- Built in protection turns off USB charging & prevents your parked vehicle's battery from draining - Starts back up when vehicle engine fires up. ; Monitors and displays parked vehicle's battery status - indicates battery is 'start ready' at the blink of an LED!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074KLP22Z |
| Amperage | 3.3 Amps |
| Best Sellers Rank | #1,054,744 in Automotive ( See Top 100 in Automotive ) #1,822 in Battery Chargers |
| Brand | OptiMate |
| Built-In Media | USB Charger |
| Connector Type Used on Cable | USB |
| Current Rating | 1 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (151) |
| Global Trade Identification Number | 00644978408286, 05425006144421 |
| Input Voltage | 12 Volts |
| Item Type Name | OptiMATE USB O-108, 3300mA USB charger with battery auto protect off, weatherproof, SAE, in & out cables. |
| Item Weight | 0.44 Pounds |
| Manufacturer | TecMate |
| Mfr Part Number | O-108 |
| Model Number | O-108 |
| Number of Ports | 1 |
| Output Voltage | 12 Volts |
| Specification Met | Sae |
| UPC | 644978408286 |
| Warranty Description | 3 Years |

## Product Details

- **Brand:** OptiMate
- **Input Voltage:** 12 Volts
- **Item Weight:** 0.44 Pounds
- **Output Voltage:** 12 Volts
- **Specification Met:** Sae

## Images

![USB O-108, 3300mA USB charger with battery auto protect off, weatherproof, SAE, in & out cables - Image 1](https://m.media-amazon.com/images/I/61IY21-ezaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best design on the market!
*by D***S on July 22, 2018*

Best I've seen on the market: - 3.3a: plenty of current to charge newer phones vs most are only 2.1a - auto shutoff to avoid draining your battery without having a manual switch, only one on the market I've seen that has auto shutoff - the circuitry / bulky part of the cable is in the middle of the cable so it can be easily hidden with a smaller wire that runs to the USB port, most of the rest put the bulky circuitry around the USB port which makes it harder to cleanly install and requires a larger cable run to your phone. - integrated slot to easily zip tie the USB port in place - well made / high quality / reputable company

### ⭐⭐⭐⭐⭐ Works as intended
*by M***8 on January 28, 2023*

I have this hooked up on my Himalayan and simply ran the line underneath the tank to the existing SAE adapter I have on my battery. When I need to charge my phone while riding, I simply plug this into my SAE plug and then plug the USB into my phone's cable - job done. It has worked very well and seems to be of a much higher quality construction than some of the cheaper Chinese ones that I tried before this that either never worked or broke soon after using. So far this one is going strong and it's definitely waterproof.

### ⭐⭐⭐⭐⭐ Optimate produces quality products
*by A***. on July 22, 2019*

I cannot comment on it’s performance yet as I am still in the process of it’s custom installation it into the car. I purchased it because of the greater charge capabilities and the 3 hour cut-off feature that will preserve battery drain for extended periods of inactivity. Time will tell how well it performs but I have no reason to doubt this product before actually using it because over time I have totally switched over to other Optimate chargers and have been impressed and quite satisfied so far with the quality of their products.

## Frequently Bought Together

- OptiMATE USB O-108, 3300mA USB charger with battery auto protect off, weatherproof, SAE, in & out cables
- Garmin Motorcycle Mount Bracket
- Optimate Tecmate USB O-108 KIT, Smart 3300mA in-Line USB Charger with Sleep Mode and Vehicle Battery Controller.

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-05*