--- product_id: 56615235 title: "OptiMate 4 BMW CANbus 12V Motorcycle Automatic Battery Charger Optimiser" brand: "optimate" price: "£113.79" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/56615235-optimate-4-bmw-canbus-12v-motorcycle-automatic-battery-charger-optimiser store_origin: GB region: United Kingdom --- # 1A precise charging current 2-stage desulfation recovery Supports 2-50Ah battery types OptiMate 4 BMW CANbus 12V Motorcycle Automatic Battery Charger Optimiser **Brand:** optimate **Price:** £113.79 **Availability:** ✅ In Stock ## Summary > 🔋 Power up your ride with precision and confidence! ## Quick Answers - **What is this?** OptiMate 4 BMW CANbus 12V Motorcycle Automatic Battery Charger Optimiser by optimate - **How much does it cost?** £113.79 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/56615235-optimate-4-bmw-canbus-12v-motorcycle-automatic-battery-charger-optimiser) ## 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 - • **Plug & Play Convenience:** Includes DIN plug and clamp cables for easy bench or on-bike charging—never get stranded again. - • **Smart Low Voltage Start:** 0.5V low voltage start ensures even deeply discharged batteries get a second chance. - • **Universal Battery Support:** Perfectly charges AGM, MF, STD, GEL, and spiral cell batteries from 2Ah to 50Ah—one charger for all your rides. - • **Advanced 2-Stage Desulfation:** Revive and extend battery life with intelligent desulfation recovery technology. - • **Seamless BMW CANbus Compatibility:** Switch effortlessly between standard and BMW CANbus modes for optimized charging. ## Overview The OptiMate 4 BMW CANbus is a 12V automatic battery charger and optimiser designed specifically for motorcycles, supporting a wide range of battery types (AGM, MF, GEL, spiral) from 2Ah to 50Ah. Featuring a 1A charging current, it offers smart low voltage start and a 2-stage desulfation recovery process to extend battery life. Its dual-mode charging supports both standard and BMW CANbus systems, ensuring compatibility and safety. Accessories include DIN plug and clamp cables for versatile charging options, making it an essential tool for any BMW rider aiming to avoid unexpected battery failures. ## Description Product Description The most ADVANCED & TRUSTED battery charger in power sports! State of the art automatic battery optimiser. Now canbus compatible. For all lead acid 12v batteries from 2.5 to 50 amp-hours capacity. Ideal for motorcycles, ATVs, jet skis etc The OptiMate 4 BMW CAN-bus package is the latest version of the OptiMate 4 Dual Program pre-packed with O9 DIN plug cable and with CAN-bus mode pre-selected, ready for use with BMW CAN-bus motorcycles out of the box. This is a hassle-free solution for owners of CAN-bus equipped BMW bikes to charge via the 12V power socket. This model can also be used in normal mode with other bikes and cars using the supplied clamp lead. NB the O1 eyelet lead is not included in this package as it is assumed the O9 lead will normally be used. Diagnoses, recovers, charges, checks & maintains your battery automatically for months. All major battery manufacturers recommend maintaining batteries FULLY CHARGED. OptiMate 4 is totally safe for months-long connection and maintenance of irregularly or seasonally used batteries even while still connected to the vehicle. The sophisticated charging algorithm ensures no risk of over-charging. Suitable for all types of rechargeable 12V lead-acid batteries: filler cap types; absorbed glass mat (AGM or "MF"); valve regulated (VRLA); GEL-electrolyte. As simple as 1-2-3: Just connect OptiMate 4 to your battery, the rest is automatic. Electronically protected against user errors. There is no switch, no fuse and there are no sparks. CHARGING AMPS : 1A (constant current) USE : Indoor / Outdoor (lowest temperature: -40°F / -40°C). SAVE : Low Volt Start of 0.5V IDEAL FOR : STD, AGM & GEL 12V batteries from 3 – 50Ah. INPUT : Global (100-240V 50-60Hz), high efficiency (CEC listed), fully sealed. STYLE : Weatherproof case with wall mounts, with 180cm AC supply lead and 180cm charge lead. INCLUDED: O9 DIN Plug Lead; O4 Clamp Lead for bench charging SAFE: No risk of overcharging. Safe for long-term battery maintenance. Review: Great charger - Works fantastic for my BMW R1300 GSA Review: Great charger. - Works really well. I am impressed that I have bought the battery lead for all of my bikes so that i can plug it in easily. Diagnoses the battery aswell so if it does not register a grean light after the charging has taken place then the battery is on its way out so it can be replaced before leaving you stranded in the wilderness. Has a standard and canbus charging capability but I hav not used the latter. clear and easy to follow instructions. ## Features - Switch between standard or BMW CAN bus program - Ideal for: AGMMF, STD, GEL and spiral cell batteries from 2Ah to 50Ah - Saving: 0.5V low voltage start 2stage desulfation recovery . - Charging current: 1 A - Accessories included: O9 DIN plug O4 clamp cable for charging on the bench ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B073V39C6W | | Amperage | 1 Amps | | Best Sellers Rank | 33,284 in Automotive ( See Top 100 in Automotive ) 202 in Car Battery Charging Units | | Brand | Optimate | | Brand Name | Optimate | | Colour | Black | | Connector Types | DIN, Battery Clamps | | Current Rating | 1 Amps | | Customer Reviews | 4.7 out of 5 stars 284 Reviews | | Input Voltage | 12 Volts | | Input voltage | 12 Volts | | Item Weight | 901 Grams | | Item weight | 901 Grams | | Manufacturer | Optimate | | Manufacturer Part Number | TM352 | | Model Number | TM352 | | Number of Ports | 1 | | Output Voltage | 12 Volts | | Output voltage | 12 Volts | | Specification Met | CE | | Specification met | CE | | Unit Count | 1.0 count | ## Product Details - **Brand:** Optimate - **Colour:** Black - **Item weight:** 901 Grams - **Output voltage:** 12 Volts - **Specification met:** CE ## Images ![OptiMate 4 BMW CANbus 12V Motorcycle Automatic Battery Charger Optimiser - Image 1](https://m.media-amazon.com/images/I/71Ws7XKe0gL.jpg) ![OptiMate 4 BMW CANbus 12V Motorcycle Automatic Battery Charger Optimiser - Image 2](https://m.media-amazon.com/images/I/51eiwtBmKtL.jpg) ![OptiMate 4 BMW CANbus 12V Motorcycle Automatic Battery Charger Optimiser - Image 3](https://m.media-amazon.com/images/I/51YtlzLRWIL.jpg) ## Questions & Answers **Q: Would this work on a 2005 bmw1200 gs. Does it keep battery topped uo if not using** A: Yes it will, and canbus Optimates can be switched to normal operation too to charge-up other stuff, often useful **Q: Hi - is this the correct one for a Harley Sportster? Thanks** A: Hi - the Optimate will do bikes with Canbus wiring (my BMW) and can switch to keep charging via other wiring systems as well. The instructions explain how to switch from one system to another as you need, not sure which will apply to Harley but it does both anyway. **Q: Is this compatible with a 2019 tiger 1200?** A: Providing you have a din socket you can charge the bike through then it will work. **Q: I assume i can use this on 2018 f850 gs in can-bus mode?** A: I'm using this on my 2019 R1250RS on can- bus mode successfully. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great charger *by M***O on 22 November 2025* Works fantastic for my BMW R1300 GSA ### ⭐⭐⭐⭐⭐ Great charger. *by J***N on 15 November 2020* Works really well. I am impressed that I have bought the battery lead for all of my bikes so that i can plug it in easily. Diagnoses the battery aswell so if it does not register a grean light after the charging has taken place then the battery is on its way out so it can be replaced before leaving you stranded in the wilderness. Has a standard and canbus charging capability but I hav not used the latter. clear and easy to follow instructions. ### ⭐⭐⭐⭐⭐ Plug in and forget *by A***R on 28 February 2021* Vehicle has a battery hidden away so awkward to fit my old Optimate. As is a can bus vehicle this Optimate had the option of plugging it into the accessory socket. It arrived with the can bus option already selected so just had to select the correct connector plug it into the vehicle and the mains. It performed an initial battery check cycle and then all indicators went green. It now monitors the battery and keeps it in tip top condition so the vehicle is ready to use at the turn of the key. Peace of mind knowing that when I want to use the vehicle it is ready to go and no flat battery. ## Frequently Bought Together - OptiMate 4 BMW CANbus 12V Motorcycle Automatic Battery Charger Optimiser - OptiMate O1 SAE Weatherproof Eyelet Lead, Black - OptiMate O13 SAE Extension Lead 4.6 Meter, Black --- ## 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.co.uk/products/56615235-optimate-4-bmw-canbus-12v-motorcycle-automatic-battery-charger-optimiser](https://www.desertcart.co.uk/products/56615235-optimate-4-bmw-canbus-12v-motorcycle-automatic-battery-charger-optimiser) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-10*