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Oxford Oximiser 900

Best Seller
in Battery Chargers

New generation of battery care

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Customer Reviews for Oxford Oximiser 900

Oxford Oximiser 900
March 20, 2020


Replaced my faulty oxford optimiser 900 which had failed just under 12 months of use.excellent service rang to explain and in no time had return label sent by e,mail returned item and recieved replacement in no time 10 out 10 for service

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Oxford Oximiser 900
March 16, 2020

Good Charger

Good piece of kit, shows voltage and current, I'll know my battery is fully charged every time I use my bike. I like that it comes with crocodile clips and battery connecters so I can leave these on my bike.

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Oxford Oximiser 900
March 11, 2020

Battery Charging

Plug in and leave,works a treat!

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Oxford Oximiser 900
March 6, 2020

Does the job....I hope

I like that the cable can be left attached to the battery terminals as accessing the terminals is a pain. The mains cable could be longer but just use an extension. Seems to be working ok and keeping the battery "maintained".

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Oxford Oximiser 900
March 2, 2020

Oximiser 900

Brilliant bit of kit, plug in and that's it nothing more to worry about

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Oxford Oximiser 900
February 24, 2020

Great value and easy to install.

The Oxford Optimiser 900 arrived on time as quoted. The instructions are clear and easy to follow. The unit was installed within an hour of arrival and has proved to be a valued piece kit ensuring the bikes battery remains at optimal level at all times. A must for every biker.

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Oxford Oximiser 900
February 18, 2020

Works perfectly

I really like that it shows me the voltage and current and doesn't just have lights. It's good to know that the battery will be fully charged when I come to start my bike.

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Oxford Oximiser 900
February 11, 2020

Not convinced

Jury out on this. Switch on and it says bulk charge, then soon goes to maintain for few hours, then bulk charge again, implying battery suddenly got low again. Will try on another battery, though bike it's charging always starts in the button

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Oxford Oximiser 900
February 11, 2020

OK but not the full solution!

Lightweight hopefully robust, and functions as expected. What let's this product down as others have said is the length of the cables supplied. The power cable is 1 metre long and the cable with the weather proof socket is a metre long, considerably shorter then after you've wired your bike up. Unless you can get your bike really close to a power socket you will need to use an extension. I bought a UK 3 pin to IEC C7 5m long for less than £5 off eBay. I also purchased a genuine oxford adapter lead OF704 for £12.95 off eBay for my second bike.interestingly this is 2m long, so tt begs the question as to why Oxford didn't supply the charging unit with a longer tail. The waterproof socket cover on the bike end is made from very inflexible plastic and will fail for sure. The cable mate n lock linking sockets feel flimsy, but are relatively easy to replace as long as you have a crimping set. Oxford seem to be the bespoke charger so I hope this item lives up to its reputation. Finally reduced my 4 stars to 3 because you can't register for guarantee online, post only, and I'm still waiting for the acknowledgement. Do look at other options.

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Oxford Oximiser 900
February 5, 2020

Oximiser 900

Does exactly what it says on the tin. Great compact unit and comes with clamps and pole connectors.

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Press Reviews for Oxford Oximiser 900


Oxford Oximiser 900

  • A new generation of Battery Care Systems has arrived
  • Automatically maintain, optimise and prolong the life of any 12v battery
  • The Oximiser 900 can be left permanently connected to provide long-term battery care
  • Complete with: Waterproof fuse holder, Crocodile clips, Wall bracket and screws

A new generation of Battery Care Systems has arrived. A professional switch mode charger designed to automatically maintain, optimise and prolong the life of any 12 volt battery.

Suitable for all 12V battery types up to 30Ah including Gel, MF and conventional lead and refillable batteries. The Oximiser 900 can be left permanently connected to provide long-term battery care.

This sophisticated battery management system provides real time information about the battery condition. Heavily discharged batteries as low as 4.1 V can be charged if the battery is not damaged.



Established in 1973, Oxford is now one of the world's leading suppliers of products to the two-wheeled industry. From its base in Oxfordshire, the company distributes to over 75 partners worldwide and has its own subsidiary in Jacksonville, Florida, serving both North and South America. Its huge range of products encompasses everything which makes life on bikes better; from clothing and helmets to accessories, hard parts, locks and luggage and more!

See all Oxford products
Questions and Answers

Questions and Answers

  • The battery on my bike is a AGM (absorbed glass Matt) sealed lead acid battery. This type of battery isn't listed for the this charger. Is the Oxford Oximiser 900 suitable to use on this type of battery?

    July 30, 2019

    This charger is suitable for Absorbent Glass Mat Batteries. From the instruction manual: Use this charger for charging a LEAD-ACID battery type only (VRLA, GEL, AGM, MF). It is suitable for charging batteries with 6 cells and ranging in rated capacity from 1.2Ah up-to 30Ah.

  • Can the OXFORD 900 charge lithium motorcycle batteries.

    May 21, 2019

    The Oxford 900 is not recommended for use with Lithium batteries.

  • I pick up a new bike Saturday and I think it has a usb connection for charging. Is this suitable?

    March 14, 2019

    A USB port on a bike will be for charging items such as mobile phones, and will be for output only. The Oximiser will come with a battery connection lead.

  • What length are cables that come with this, ie mains plug to charger and charger to bike. Also what difference between this and aniversary edition, same price except for a few coloured buttons on front ?

    September 20, 2018

    The measurements are approximately 34 inches from the plug to charger, the lead from the charger to the connector is around 37 inches, and there is around 12 inches length on the battery connection lead. There is no difference between this and the Anniversary Edition.

  • Is this charge suitable for Lithium Batteries. I have read some manufacturer statements saying as long as they are not left on for long periods and the chargers don't charge at 15+ volts they should be fine?

    January 29, 2018

    The only Oximiser that Oxford list that is suitable for lithium LifePO4 batteries is the 3X, and so we would not recommend using the Oximiser 900.

  • Can you use with DDA socket?

    January 11, 2018

    This cannot be used with a DDA socket. The Oxford battery chargers use the TM connections, but will come with a battery connection lead.

  • Can this oximiser be used with VRLA (valve regulated lead acid) battery, many thanks.

    December 6, 2017

    The Oximiser 900 can be used for VRLA type batteries.

  • I have a battery that says 'no quick charging' on it (, can I still use this charger/tender? I plan on taking the battery off the bike and leaving it on the charger for the winter. Thanks.

    December 4, 2017

    The Oxford Oximiser will be fine to maintain your battery.

  • Does this come with a EU plug too?

    November 28, 2017

    The Oximiser 900 is supplied as standard with a UK plug only.

  • Could you please advise how long is the wire connection from Oximiser to power point. Regards...David

    November 23, 2017

    We can confirm that the length of the wire (not including the plug) is approximately 34".

  • How are these with the outdoors? If I were to use it in my shed that doesn't offer a sealed environment away from the cold, would it cope?

    November 21, 2017

    We would not recommend this for outdoor use, but it will be fine in a shed (as long as it does not get wet)

  • I bought this item and connected it up. It charges on bulk charge 0.87 amps then drops to maintain at 0.25 amps. I left it on for two days, the battery shows 12.8 volts plus, but it won't turn the engine over enough to start. If I use my old style car charger it will charge up ok but doesn't hold the charge for more than a few days even with the oximiser attached. Any advice?

    November 6, 2017

    We would suggest either replacing your battery or asking an Auto-Electrician to check your regulator/rectifier.

  • Can you buy a 2nd set of connectors to be left on on a 2nd bike.

    October 30, 2017

    You can, you will need to purchase a TM71 Tecmate/Optimate connector (quick find number 2649, option number 3)

  • Can the optimiser 900 charge through a power socket (cigarette lighter type) if the socket is not wired through the ignition switch and has a separate fuse?

    March 6, 2017

    No, this unit does not come supplied with a 12V socket connection, only crocodile clips.

  • I have a 900 optimizer and its charging fine but what does "Bulk Charge " mean?

    March 3, 2017

    Bulk Fast Charge means that the Optimiser charges at a fast rate to bring the battery to approximately 85% capacity

  • Can I double check it will revive a flat battery? I would also like to know how it fits to the bike?

    March 1, 2017

    Optimisers can not always revive a flat battery as this will depend on how much it has already been discharged.( Heavily discharged batteries as low as 4.1 V can be charged if the battery is not damaged. The unit fits to the bikes battery via terminal leads which can be stored under the seat or fed through part of the bikes frame for easy access to the mains lead.

  • I have bought a new battery and need pour in the acid to activate it and then charge it. Will this charger work for this purpose?

    February 23, 2017

    This will be fine - let the battery stand for an hour before charging, and leave the cap off while charging for the first time.

  • Plugged my charger in after bike was standing for two weeks bike didn't start so plugged in to give it a top up.. kept flashing 10.2 volts for two hours.. took battery in to bike shop to check.. charged it 100%.. just don't understand why my oximiser wouldn't do it??

    February 20, 2017

    The Oximiser is designed to be plugged in and left on to maintain a battery,and so should really have been plugged in before leaving the bike for two weeks. The charger will go through cycles(recover, bulk charge and maintain) and two hours would not be long enough to give the battery a full charge. If this had been left on over night you should find that the battery would be fully charged.

  • Can you leave it on all over winter?

    January 28, 2017

    The Oximiser 900 can be left permanently connected to provide long-term battery care.

  • Do Oxford have a charger that can be used on both cars and bikes?

    December 7, 2011

    The Oxford Oximiser 3800 is capable of charging batteries from 1.2Ah up to 125Ah making it capable for car applications.

  • Does it mean you can connect it to your bike whilst you are riding it, or just when it is in storage?

    November 30, 2011

    The Oxford Oximiser comes supplied with a connection wire which can be permanently attached to your battery. The wire leading from the battery ends in a connection point which can be placed in a convenient position such as under the seat etc. This allows you the convenience of connecting directly to the Oximiser when the bike is not in use and then disconnecting before you go out on the road.

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