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AccessoriesBattery ChargersIndustry NewsLatest Motorcycle NewsOptiMate

Monitor your bike battery this winter with OptiMate

Frank Duggan
Last updated: December 2, 2025 10:04 AM
By Frank Duggan
5 Min Read
Monitor Your Bike Battery This Winter With Optimate
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Monitor Your Bike Battery This Winter With OptimateThe new OptiMate O-124 Monitor provides a simple, weatherproof way to keep tabs on your battery’s health

Laying up your bike for the winter months? Modern motorcycles are more advanced, and more power-hungry, than ever before.

Keyless ignition systems, alarms, trackers, electronic suspension, and onboard computers all draw a small amount of current, even when the ignition is off. That ‘always on’ convenience comes at a cost: a gradual, continuous drain on the 12V starter battery.

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In ideal conditions, a modern motorcycle’s control modules should only draw a tiny standby current – typically under 20 milliamps. But it takes just one small fault in the system – a luggage lock relay stuck active, an aftermarket alarm, or even a key fob left too close to the bike – to wake the electronics and increase that draw to as much as 1 amp.

Left unattended, that’s enough to deeply discharge the battery in a matter of days, causing permanent damage and leaving the bike lifeless come spring.Monitor Your Bike Battery This Winter With Optimate

The OptiMate O-124 Monitor offers a simple, reliable way to keep tabs on the battery all winter. Designed to be permanently attached, it provides an instant health status of any 12V AGM, STD or GEL battery – it will also confirm if the vehicle charging system is working correctly.

If the monitor shows the battery needs attention, simply plug your OptiMate charger into the built-in SAE connector; no extra leads or adaptors required. It’s the ideal solution for riders with more than one bike in the garage, or anyone who prefers not to keep a charger permanently connected.

Safe to use indoors and outside, the O-124 features a fully enclosed electronic circuit, weather-sealed SAE connector with protective rubber cap and shroud, and remains flexible even in sub-zero conditions. It comes supplied with both M6 and M8 eyelets, making it easy to fit to almost any motorcycle battery.

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Do you know when to charge your 12V starter battery? With the OptiMate O-124 Monitor you do now! It retails at just £28.90 (inc. VAT) and is covered by a 3-year warranty for peace of mind – a small investment that ensures you never find your bike lifeless on the first sunny day of spring.

OptiMate O124 LED Battery Monitor Eyelet Lead
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Modern Classic Motorcycle News - Issue 57
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Visit optimate.co.uk to view the complete range of OptiMate chargers and accessories.

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Monitor Your Bike Battery This Winter With Optimate

You can purchase Optimate products online from their Amazon store by clicking our affiliate link*:

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For more info checkout our dedicated Optimate News page Optimate News

See the complete OptiMate range of chargers and monitors at  www.optimate1.com.

About
OptiMate is manufactured by TecMate for whom we are their UK importer. TecMate are a specialist international battery charger manufacturer who are recognised as leaders in their field. ProBike have been their sole UK importer since day 1 and have achieved phenomenal success with TecMate’s battery chargers and other specialist tools, having sold over 500,000 OptiMate and AccuMate chargers in the UK, picking up multiple awards on the way.

OptiMate has now been recommended by virtually every major motorcycle manufacturer for very good reasons – they test and assess maintenance chargers to ensure they will not damage either your battery or your bike.

*We receive a small percentage of any sale but have no control over the final supplier on Amazon

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Modern Classic Motorcycle News - Issue 49
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Amazon price updated: January 19, 2026 7:33 PM

* Disclosure: This page contains affiliate links, which means I may earn a commission (at no cost to you) if you click on the link and make a purchase. Any money made goes straight back into the website and magazine. Your support is appreciated!

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