E-bike
battery
problems

Because there's nothing worse than gearing up for a ride and finding that your bike battery isn't quite working as it should, we thought we'd help. We've put together this electric bike troubleshooting guide to help answer some of the most common questions and issues you might run into.

How common are electric bike problems?

With the right electric bike maintenance and quality electrical components, your equipment can last you a good few years. Raleigh electric bikes are made with top-of-the-line parts including Suntour and Bosch batteries, so you can hit the road in full confidence you're riding on two very trustworthy wheels! 

Things like undercharging and overcharging the battery can affect its life - as with all electronics - so proper battery care is key. It might sound obvious, but make sure to store it properly, use the right charger, and keep it away from water. 

Electric bike battery charging issues

Just like the one in your smartphone, the battery in your electric bike will wear down over time. Even with careful handling, the battery cells will age, decreasing their capacity – it’s one of those unavoidable things (death, taxes, and batteries degrading). 

We've pinpointed some of the most common electric bike battery issues and things to look out for, so you'll know how best to look after your equipment.

Electric bike battery doesn't charge

If the battery no longer charges at all, unfortunately, you may have a major problem – it’s no longer providing any additional drive to your electric bike whatsoever.

Your first reaction might be to think about getting a new battery, or think about getting it reconditioned. However, before you jump the gun, make sure to check the charger. If you can, try charging your electric bike with a different charger to see if that works with the battery. Obviously, buying a new charger is cheaper than having to replace the bike or battery, but make sure that's where the problem is before you do - it's also worth trying a different plug socket, too.

As a precaution, it might be worth checking the capacity of your e-bike battery to make sure it's working as it should. Get in touch with your local e-bike specialist so they can have a look at the mechanics.

However, if a bicycle battery shows obvious signs of damage and can no longer be charged after a collision or fall, get it replaced immediately. Don’t keep using a damaged battery – it could be dangerous.

Electric bike battery takes longer than usual to charge

The time it takes to charge an electric bike battery depends on the brand and the type of battery. As a rule, over time it will start taking longer to charge, as a result of the natural degradation of the battery cells. To maximise the life of a battery, it’s best to avoid keeping it connected to the charger after it's fully charged.

If you ride your e-bike regularly, you should charge the battery at least once a month. Even if you're more of a casual cyclist, it’s crucial to avoid letting the bicycle battery discharge completely, which is called 'deep discharge'. This can cause permanent damage to the battery and even be a potential fire hazard, so should be avoided at all costs.

So, to maintain the best possible charging time and to keep your electric bike battery in the best working condition, try not to leave it connected to the charger after it's full, and avoid letting it get down to 0%.

Electric bike battery doesn't hold charge

If you're out and about and notice that your electric bike is running out of charge faster than normal, you may need to check both the battery and the e-bike motor. Of course, you can still cycle without using the electric pedal assist, however riding will be more difficult.  

Check the charger and any cables for any damage, and also check the actual battery for any swelling. Even if you don’t find any damage, if the charge is running out more quickly than you're used to or the battery life isn't as reliable as it has been, it's probably time to take your battery to a specialist. They may be able to recondition the battery, or it might be time for a replacement. 

What to do if you damage your electric bike battery

Sometimes, no matter how careful we are with electric bikes, we can run (or cycle) into trouble. You might take a tumble on the bike, bumping or knocking the battery and other electrical components. Obviously, the first thing to do if this happens is to make sure you're ok and not injured! Then, check on your battery...

Remove the battery and examine it carefully - do this even if you've just knocked your bike against something while transporting it, or if you've dropped the battery itself. If there’s any visible damage, such as holes or dents, you shouldn't use the battery at all. Take it to a specialist dealer as soon as possible. If there is no visible damage, you can reinsert it. 

After a short ride, check that the battery isn’t unusually hot – this could indicate a fire hazard. If the battery life is unreliable or it’s discharging faster than usual, stop using the battery immediately and take it to your specialist dealer. Don’t use it until it has been looked over by a professional – it could be dangerous.

How to avoid e-bike battery problems

Of course, no piece of electronic equipment is infallible or completely eternal, and even the very best electric bike batteries will eventually start to wear out. However, there are a few things you can do to prolong e-bike battery life:

Store batteries correctly

It's really important to make sure you're storing your battery correctly - including at the right temperature.  Be particularly careful in the winter – neither the battery nor the e-bike frame itself should be exposed to sub-zero temperatures. 

If you want to use your e-bike in cold weather, keep the battery indoors and only connect it just before you start cycling. If you store your e-bike in the garage, storeroom or basement, always remove the battery and store it in a dry place that is not too warm.

Charge batteries properly

When charging, remember that your e-bike's battery should be disconnected before it’s fully charged. Even a charge of 70% is enough to prolong battery life. If you overcharge your e-bike battery, you run the risk of damaging the cells. Similarly, you should never let the battery drain completely. Generally, we recommend storing the battery away at 30-60% charge. 

Even if you're not using your e-bike regularly, it's a good idea to regularly charge the battery - at least once a month. This will help avoid deep discharge and avoid the risk of completely draining the cells.

Ready for a new e-bike? Browse our range of electric bikes, and find out more on our Electric Bike Knowledge Hub. 

FAQs

What are common issues with e-bike batteries?

Some of the most common issues with e-bike batteries include a reduction in battery capacity (degradation) over time, charging problems (such as slow charging or failure to charge), and unexpected power loss during rides. Extreme temperatures, improper charging techniques, and manufacturing defects can contribute to these problems.

How can I extend the lifespan of my e-bike battery?

To extend the lifespan of your e-bike battery, follow these tips:

What should I do if my e-bike battery is not holding a charge?

If your e-bike battery is not holding a charge, start by checking the charging cable and connectors for damage. Examine the battery for physical damage or swelling - if you find any, it isn’t safe to use. Even if there’s no damage, if the battery isn’t charging properly, take it to your local bike specialist for help, or refer to the manufacturer’s instructions. 

Are there regulations or guidelines for e-bike batteries in the UK?

The main regulations and guidelines for e-bike batteries in the UK involve the guidelines for proper disposal and storage of lithium-ion batteries and safety standards. Make sure to check with your local council for any guidelines around disposing of batteries.