Best Lithium Motorcycle Battery Charger


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Last Updated: 28th September 2021

If your motorcycle has a lithium battery fitted or you are thinking of swapping out to a lithium battery, you will need a lithium motorcycle battery charger.

Lithium batteries require special charging conditions to be kept in optimum working condition, and you will want to avoid any unwanted accidents as a result of improper charging. 

Therefore, we have pulled together some of the best lithium battery chargers on the market.

We also have a comprehensive buying guide, so you have all the information you need about lithium batteries, including addressing some of the common myths that question lithium batteries’ reliability. 

Here are our top lithium motorcycle battery chargers.

Top Pick
TecMate OptiMate Lithium

Compact, Automatic, Great Value

This affordable charger will keep your lithium battery maintained and charged without you having to play around with any settings, just plugin and you're good to go. 

TecMate OptiMate Lithium 0.8A Battery Optimiser

The TecMate lithium battery charger is specifically produced to charge and maintain 12V lithium batteries. 

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It comes with clear instructions, which make it very easy to use. 

Once you have fitted the terminals to the battery, they can stay there permanently, and all you need to do is hook up the crocodile clips to keep the battery charged. 

There are no switches or settings to change; just hook the battery up, plug the charger in, and the optimiser does all the work. 

This charger fits the term “does exactly what it says on the tin.”

Pros:

  • Fully automatic, no switches to operate it which eliminates user error protecting the battery
  • Easy connection to the battery via connectors which can stay permanently hooked up
  • Solely a lithium battery charger, built specifically for lithium battery needs

Cons:

  • Only works for lithium batteries so if you also have a bike with a lead-acid battery you will need a different charger. 

Noco Genius 1

The Noco Genius 1 is the do-it-all battery charger, battery maintainer, trickle charger, and battery desulfator.

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I have picked it for the list because it is a multi-tasking unit, and it works with all types of motorcycle batteries. So it is a great choice for those who have more than one bike in the garage that may have different battery types.

The Noco comes with a cable just over 2m in length, so you will need to ensure your bike/battery is close to a wall socket. 

The crocodile clips supplied come with eyelet terminals that can be unscrewed and secured onto the battery permanently. This makes the process of connecting the charger much easier.

The Noco also has an Integrated Thermal Sensor, which monitors the charge to ensure it doesn’t overcharge in high temperatures or undercharge in low temperatures. 

The charger is built into the plug socket, so it is a really compact unit. 

It is just a 1 amp charger, so it is generally best for trickle charging lead-acid batteries, but it is capable of fully charging batteries over time. 

Lithium batteries, however, being smaller, have a high power density, and they take less time to charge regardless and need to be charged at a low voltage. So, the Noco Genius 1 is great for this. 

A word of warning though the Noco charger is only suitable for lithium batteries with a BMS (Battery Management System). 

You can also get the Noco charger in high voltages, so bare that in mind if you need something a bit more powerful. 

Pros:

  • Suitable for 6V, 12V batteries and both lead-acid and lithium batteries
  • Compact size
  • Quick-release cable
  • Good value

Cons:

  • Only for use with lithium batteries that have a Battery Management System (BMS)
  • Low voltage charge, slow-charging speeds

Oxford Oximiser 3X Motorcycle Battery Charger and Optimiser

Oxford is a staple motorcycle accessories company and is a renowned brand in the industry. 

This charger and optimiser will charge your battery up if it gets too low, and at the same time, you can leave it on to keep the battery charged up when your bike isn’t in use.

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Although, it is not recommended to use this oximiser for trickle charging your lithium battery as it is more suited to lead-acid batteries for that purpose. 

It will, however, charge your lithium battery with no issues. 

The charger is fitted with a voltage sensor, so it will automatically adjust to the appropriate rate if the current is too high. This is especially important for lithium batteries.

The unit is super easy to use, and instructions are very clear; it feels very solid. 

The only niggle will be the leads are a little short, and this can mean having to remove your motorcycle battery every time or ensuring your bike is parked up near a wall socket. 

Pros:

  • 2 year Oxford warranty
  • Works with bikes, cars and leisure batteries, so is a one-stop charger for all your battery needs
  • Charges/maintains all 12V batteries, so will look after your Lithium battery and any lead-acid batteries you have for your bikes

Cons:

  • Expensive compared to other options
  • Not a great option for trickle charging lithium batteries
  • Leads are a bit short compared to other options

Varley Lithium Li-3 Battery with 2 Amp Charger

One option if you are looking to switch your traditional lead-acid battery to a lithium battery might be this lithium battery which includes a charger.

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Varley has started producing lithium batteries that can take the place of their Red Top lead-acid batteries.

There is a handy chart to work out which size lithium battery you would need to replace your current traditional one. 

This pack includes a Varley charger, so you know you are getting the best-suited charger for your battery. 

It is an option to consider if you are switching over to lithium, as you can get your battery and charger in one go and make the process easy. 

The intelligent tech in the charger monitors the charge to not overcharge the battery and cause damage. 

The battery only takes a few hours to charge fully.

Pros:

  • Battery and Charger included
  • Good value
  • Quick charge time
  • Intelligent electronics self-limit the charge rate to avoid battery damage

Cons:

  • Can get quite expensive depending on which battery size you need

Buyers Guide

When using a lithium battery on your motorcycle, it is important to know how they work and, more importantly, how they differ from traditional lead-acid batteries. 

Understanding this information will mean you understand the importance of investing in a good lithium motorcycle battery charger. 

What is a lithium battery?

Lithium batteries are sometimes referred to as LiFePO4, which is essentially the chemical makeup of the battery cells: Lithium (Li), Iron (Fe), Phosphate (PO4). 

A lithium battery works by the lithium ions moving from the positive electrode to the negative electrode through an electrolyte when charging and then the reverse when discharging. 

They are relatively new to the market and initially were significantly more expensive than lead-acid batteries.

However, prices have dropped over the last year or two, and they sit on par with traditional battery pricing. 

How does a lithium battery differ from a traditional motorcycle battery?

#1 Weight

Lithium batteries are lighter in weight than lead-acid batteries. They also have an increased power density, so deliver the same or more power. 

This often means they are physically much smaller in size too.

To enable easier compatibility, some manufacturers of lithium batteries have started to put the battery in the same size housing as a lead-acid battery to ensure it fits securely in the motorcycle. 

#2 Power Draw

Lithium is more expensive than lead; due to this, manufacturers will produce their lithium batteries with the same cranking ability but a lower amp-hour (Ah) than a lead-acid battery. 

This means that lithium batteries are not great at sustaining accessories on the motorcycle that are directly hooked up to the battery when the bike isn’t running. 

For example, I used to have a USB port connected straight to my battery, and a little blue light would stay on regardless of the bike being on or not. 

When in regular use, this wouldn’t affect my lead-acid battery as the port would draw so little power. 

However, had I been using a lithium battery, it would not cope with this and would constantly be dead, ultimately ruining the battery. 

This isn’t a problem as you can wire in accessories such as USB ports and heated grips to have an on/off switch so that power is only being supplied when the bike is running (this is a far more sensible option anyway to prolong the life of any battery type.)

#3 Charging

Lithium batteries charge faster than lead-acid batteries, largely down to their smaller size.

#4 Lifespan

Lithium batteries, provided they are looked after, have a longer lifespan than traditional batteries. 

#5 Cranking Power

Lithium batteries have roughly 3 times the Cranking power of a traditional lead-acid battery.

Pros and Cons

Pros:

  • Lightweight – 3 to 4 times lighter than lead-acid battery
  • More Cold Cranking Amps
  • No acid is involved, so there will be no horrible leakages to contend with
  • They self-discharge a lot slower than lead-acid batteries, so there is less chance of going out to start the bike to find the batteries dead
  • They charge up quickly
  • Long lifespan, which makes them very economical

Cons:

  • Need a specific lithium battery charger
  • Lithium batteries don’t cope well with very cold conditions (close to freezing)
  • You cannot recover a truly flat lithium battery, however, they self-discharge slowly and so you should be able to avoid this situation
  • Damage is possible if you use an unsuitable charger, that pumps too much Voltage into the battery 
  • Cannot sustain accessories that draw power when the bike is not running, so be sure they turn off when the ignition is off

Misconceptions

There are some common misconceptions about lithium batteries that you may have heard.

The fact is when anything new comes on to the market that is set to replace something that has been tried and tested over the years, negative attention gets more press, and generally, people are resistant to change. 

So let me take the opportunity now to debunk some of these theories floating around.

Myth #1: Lithium Batteries Catch Fire

The chemical makeup of LiFePO4 batteries used for motorcycles is incredibly stable and carries a much lower risk of setting alight. 

Li-Ion batteries are made up slightly differently and are chemically less stable, and heat up much faster. These are not suitable for use in motor vehicles as a result. 

A lithium battery is at no more risk of catching fire than a regular lead-acid battery. 

However, it is very important to use an appropriate charger that monitors the voltage your battery receives.

Many lithium batteries will come with a Battery Management System (BMS) to ensure the battery receives the appropriate voltage and doesn’t overcharge. 

With a Li-Ion battery overcharging has the potential for overheating and for a fire to occur. 

However, with a LiFePO4 battery, the worst case would be that the battery warps. 

Some lithium batteries do not come with a BMS or short circuit protection (to cut off power supply if the charge rate is excessive); this is why it is important to get the correct charger to control the charge rate for your battery. 

Myth #2: Lithium Batteries Fail

How many of you have gone to start your bike after Winter to find that it is dead? Then you have charged the battery and figure out that the battery had given up? 

I have.

Lithium batteries are no different to lead-acid batteries and are at no more risk of failure either. 

The only real way for things to go wrong is if you are not using an appropriate charger that emits the correct charge rate for the battery and ensures it doesn’t overcharge. 

In fact, lithium batteries have a lower self-discharge rate, so in theory, it is less likely that if you leave the bike for a few weeks, you won’t be able to get it going with a lithium battery.

Myth #3: Lithium Batteries Have a Reduced Lifespan

Lithium batteries actually have a longer lifespan than lead-acid batteries.

A traditional battery has an average lifespan of 2-3 years, whereas a lithium battery can last 10-12 years. 

This idea came about because lithium batteries, when discharged to nearly empty, cannot be recovered, so they would need to be replaced. 

However, if you keep your lithium battery out of the danger zone (charged above around 30%), then it will serve you well for a long time.

Myth #4: Lithium Batteries Don’t Work in the Cold

This is the one misconception that holds some truth in it. 

When it is particularly cold, lithium batteries produce less cranking power and therefore can struggle to get the bike started. 

Warming your battery up beforehand can help with this; for example, turning your lights on or plugging something into your USB port will start to draw power from the battery and warm it up. 

FAQ:

  1. Do you need a special charger for lithium motorcycle batteries?

    Yes, you need a specific charger for lithium motorcycle batteries. This will ensure that the bike doesn’t overcharge and that it regulates the charge rate, so the battery doesn’t receive too much voltage.

  2. How do you charge a dead lithium motorcycle battery?

    A completely dead lithium motorcycle battery is not recoverable. It will need to be replaced. 

    If a lithium battery completely runs out of power (anything from 2.5v and below), the damage caused is not reversible, and therefore you will not be able to recharge it. 

  3. How long does it take to charge a lithium motorcycle battery?

    The average time for a lithium motorcycle battery to charge is 1-2 hours, whereas a traditional battery will take about 12 hours to charge. 

  4. Can a lithium motorcycle battery be jump-started?

    No. Avoid doing this as the quick high voltage runs the risk of damaging the battery permanently. 

    The safest thing to do is plug the battery into a dedicated charger for 5-10 minutes, which should be enough to start the bike.

  5. Do any motorcycles come with a lithium battery as standard?

    Some high-end motorcycles come with lithium batteries as standard, particularly bikes where weight-saving is a big advantage, such as the Ducati Panigale V4S and V4R. 

    Harley Davidson also produces three lithium batteries in different sizes for their motorcycles that you can upgrade to; these batteries cover most of their machines for the last twenty years.  

Conclusion

Lithium batteries are the way of the future, and therefore you must get yourself a charger that keeps up with the times to look after your battery for the bike. 

I like the TecMate charger because it is automatic, and there is little chance of user error. A great value charger that will keep your lithium battery in top condition.