---
product_id: 56615265
title: "O108 USB mains charger with auto shut off, 3300 mA"
brand: "optimate"
price: "₨39349"
currency: LKR
in_stock: true
reviews_count: 9
category: "Optimate"
url: https://www.desertcart.lk/products/56615265-o108-usb-mains-charger-with-auto-shut-off-3300-ma
store_origin: LK
region: Sri Lanka
---

# 3300 mA high current output Auto shut-off battery protection Weather-resistant durability O108 USB mains charger with auto shut off, 3300 mA

**Brand:** optimate
**Price:** ₨39349
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay charged, stay unstoppable — wherever the road takes you!

## Quick Answers

- **What is this?** O108 USB mains charger with auto shut off, 3300 mA by optimate
- **How much does it cost?** ₨39349 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/56615265-o108-usb-mains-charger-with-auto-shut-off-3300-ma)

## 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

- • **Smart Auto Shut-Off:** Protects your vehicle battery from complete discharge effortlessly
- • **Extended 100 cm Cable:** Flexible 2-pin SAE connection with long USB cable for convenient device placement
- • **Powerful 3300 mA Output:** Charge multiple devices fast and efficiently on the go
- • **Universal Compatibility:** Supports phones, GPS, cameras, tablets with Apple 1A handshake confirmation
- • **Weather-Resistant Design:** Built to withstand rain and rough outdoor conditions for reliable use

## Overview

The Optimate O108 is a rugged 3300 mA USB mains charger designed for 12 V vehicle systems, featuring automatic shut-off to protect your battery, weather-resistant construction, and a 100 cm cable with SAE and USB connectors. Ideal for powering phones, GPS, and tablets on motorcycles or vehicles, it ensures safe, efficient charging with built-in surge and short circuit protection, backed by a 3-year limited warranty.

## Description

You can charge your mobile phone, GPS, camera and tablet with your weather-durable equipment on your motorbike or up to 80 inches / 200 cm distance over 12 V supply. Low input (<12.4 V), automatic power-off protects your vehicle battery from complete discharge. Voltage Range: 12.4 to 16 VDC. 12 V over a 2 pin SAE connection made to industrial standards and 40 inch/100 cm connection cable. 5 V 1000Ma True output through 40 inch/100 cm USB output cable with sealing cap for USB port. Short circuit protection against overheating, surge protection. Apple 1 A ‘handshake’ loading confirmation built in. Supplied with micro USB/mini USB adaptor and deliver the status of the charger cable to other mobile phone/GPS. High quality cable, developed by TecMate. 3 years limited guarantee.

Review: Has to be combined to be effective, but works great - Had to combine this with the Optimate O1 and the O110 so it wasn't bloody cheap, but it performed excellent and I've little doubt that it'll stand up to a lot of use.
Review: Great length - Does exactly what it says on the tin

## Features

- 3300 mA USB-charging device
- Automatically switches off protecting the battery, weather-resistant, SAE, Input and output cable.
- TecMate OptiMate USB O-108
- Item Package Quantity: 1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074KLP22Z |
| Best Sellers Rank | 149,713 in Automotive ( See Top 100 in Automotive ) 709 in Car Battery Charging Units |
| Guaranteed software updates until | unknown |
| Item model number | O-108 |
| Manufacturer | TecMATE |
| Product Dimensions | 6 x 6 x 16 cm; 200.49 g |

## Product Details

- **Brand:** OptiMate
- **Colour:** blue
- **Input voltage:** 12 Volts
- **Item weight:** 200 g
- **Output voltage:** 5 Volts

## Images

![O108 USB mains charger with auto shut off, 3300 mA - Image 1](https://m.media-amazon.com/images/I/61IY21-ezaL.jpg)

## Questions & Answers

**Q: Hi there, does it come with a sea eyelet fused lead, connecting to the battery? thanks, raf**
A: Hi Raf. As you have now found out this does not come with the SAE71 Fused Lead. We are trying to get that image removed. Apologies for the mix up.

**Q: Does this come with the lead to connect to the battery or do I have to buy that separately?**
A: The lead that connects to the battery is sold separately.

**Q: Can I use this adapter  with usb jump starter to jump start a bike?**
A: I would say not, the gauge of wire the cable is made from is not thick enough.

**Q: Does this have quick charge (qc) 3.0 support?**
A: This is not mentioned on the Optimate website nor on the packaging so assume not.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Has to be combined to be effective, but works great
*by C***M on 7 December 2020*

Had to combine this with the Optimate O1 and the O110 so it wasn't bloody cheap, but it performed excellent and I've little doubt that it'll stand up to a lot of use.

### ⭐⭐⭐⭐⭐ Great length
*by J***T on 23 June 2019*

Does exactly what it says on the tin

### ⭐⭐⭐⭐ Good quality lead but lacks 5 stars
*by C***D on 11 January 2020*

This is an excellent product and comes with a long lead to charge USB devices. There's also a 'free cable' with it which connects to the battery and can be used with both the USB charging lead and Optimate chargers. This free lead can be permanently connected to the bike and has a weather-proof cover on the open end but (here goes...) sadly the USB charging lead doesn't have a similar cover at the corresponding SAE end, hence only 4 stars. There is a cover on the USB socket though. While I'm sure the USB to battery lead provides a good seal when connected, it does mean that the open end is at the mercy of the elements and for that reason I don't now want to risk connecting this USB lead permanently to my bike (that's what I'd intended). For the sake of an extra end cover (see picture of Optimate O1 which actually includes 3 of these in different colours) this would've been a 5 star product and had I known this before purchase I'd have bought the stubby USB charger instead (O100). With regard to charging though, the charger holds power for a while after the bike has been switched off and cuts out below a certain level so it doesn't keep draining the battery which is a good thing. UPDATE - I've decided to return this and buy the O100 charger instead - there's no point in carrying a pocket full of cable around as well as the charger.

## 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 Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-12*