How To Charge Your Ebike Battery Without A Charger! Find Out Here!

Last Updated on October 13 2022 by Sam

How To Charge Your Ebike Battery Without A Charger?


Commuters increasingly use electric bikes daily as we enter a new age of urban mobility headed by electric cars. Electric bikes are less complicated to operate than traditional bicycles; they are quicker, more dependable, and a more affordable alternative to electric vehicles.

However, one of the most common issues people have when it comes to electric bicycles is figuring out how to charge them while they are out of reach of their charging stations. What options do you have if you find yourself in a predicament where your charger is at home, but you are out and about and out of power on your device? What do you do if your charger suddenly stops working, leaving you needing an alternate method to charge your electric bike?

Don't let these worries prevent you from buying an electric bike. Although it is strongly recommended that you only charge your electric bike using the correct charging method, there are several alternative ways by which you may charge it, even if you don't have a proper charging station. Read on for an in-depth look at some of those alternate charging options.

Six different ways to charge your e-bike battery without using its charger

Most electric bicycles today are powered by lithium-ion batteries, mostly replacing earlier, less efficient battery types such as nickel-cadmium or lead-acid.

Lithium-Ionic batteries have a higher power output and are easier to recharge than other types of batteries (such as nickel metal hydride). A typical lithium-Ionic battery has a storage capacity of 9 amps per hour and can go up to 32 kilometres without needing to be charged again.

If you ever run out of power for your e-bike, here are some ways you might be able to recharge its lithium-ion batteries.

However, remember that these techniques should never be used unless no other safer option is available. They may damage your phone's batteries.

Method #1: USB port

Using a standard charger with a USB connector, you can quickly charge an electric bike's lithium-ion battery. It would help if you looked for a USB cable comparable to the one that connects your smartphone to a computer.

Establish a connection between the cable and a source of electrical power density equipped with a USB port. This might be a power bank, a computer, or a wall socket. Join the battery to the end of the cord with the discharge coming out of it. After that, you may turn on the electric gadget, which will start charging the battery automatically.

Remember that this is only a viable choice for a more compact battery. It's possible that a conventional USB port cable won't be able to accommodate a bigger battery, which will result in the battery not working properly.

Method #2: Use your car battery

You may also charge the battery of your electric bike by using the battery from your automobile. This approach involves connecting the lead-acid battery from the automobile to the lithium-ion battery contained in the electric bicycle utilizing jumper cables or any other type of wiring.

When you use this approach, you have to be careful about the current supply since it is moving from the e-bike's battery of your automobile, which is significantly more powerful, to the battery of your e-bike, which is smaller and less powerful.

The amount of electricity that flows through the cable may be regulated using light bulbs attached to it.

For instance, if the battery in your vehicle has an electric power output of 13 volts and the battery indicator in your electric bike shows a flow of power output of 6 volts, you may use three tiny light bulbs to limit the flow of current and guarantee that the bike battery is not overloaded.

You may allow 0.5 amps of current to pass to the battery if you arrange the three lights to parallel.

If you want to use this approach, you must take care not to leave the charging process unattended; otherwise, the battery in your electric bike might overheat or get an excessive amount of amps of electricity. This might result in the battery suffering long-term harm.

Method #3: Use your solar panel

Solar energy (via solar panels) provides a lot more power supply than they appear to have. It can be used to charge almost any form of battery; not only e-bike's lithium battery are used in electric bicycles.

To charge your electric bike using a solar panel, you will need either a solar energy charge regulator or a high-quality solar inverter. Otherwise, you won't be able to do so. Using solar panels to charge your electric bicycle will not be feasible if you are missing any of these two necessary components.

You should always wear the appropriate protective gear when working with solar panels. To protect yourself against electric shocks and exposed electrical wire, wear eye protection, gloves, and shoes that cover your feet. If the solar panels need to be moved and their locations adjusted, this task may also require the assistance of a second person.

Method #4: Use any clip charger

Chargers with a clip are less popular than original chargers with USB ports. Therefore, it is possible that you will not always have one available in the event of an emergency. On the other hand, if you already possess one, it is not difficult to put it to use to charge the internal battery of your electric bicycle.

Once you've disconnected the bicycle from its frame and placed it on the loading station of the charger, you may then begin charging the batteries. You may then connect the ebike charger directly to the wall socket and allow the batteries to recharge while they're connected.

You should only use this technique to charge your electric bicycle if you are positive that the charger is in excellent shape and has not been knocked over or otherwise damaged. If the extra bike charger is faulty, it has the potential to harm your larger battery cells.

Also, to avoid getting shocked by the electric current, you should avoid touching the battery bank with bare hands while it is being charged.

Method #5: Charge your e-bike at charging stations

The manufacture of e-bikes and the establishment of e-bike charging infrastructure have increased in recent years due to the growing demand for these types of bicycles.

Charging facilities for electric bicycles are widespread across the United States. There is a proliferation of interior charging stations and charging stations at various restaurants and pubs.

You may look up the location of the closest charging station on your smartphone while riding your electric bicycle and then head over there to have the battery charged up again if you discover that the charge on your battery is about to run out.

You must arrive at the station, take the battery from your electric bicycle, and then place it in an appropriate charging port. There are recharging stations provided by various manufacturers, including Shell, Hyundai, EV Box, ChargePoint, Tesla, and Bosch.

Method #6: Use other similar chargers

Using a charger not designed specifically for electric bikes is the final alternative for charging an electric bike without a correct charger. To get a charge of 4.5 volts using this technique, you must use three AAA batteries in sequential order. 

To charge a common e-bike lithium-ion battery in an electric bike, you need around 3.7 Voltes (V). So using three AAA batteries should be enough.

When utilizing this approach, you must ensure that the three batteries are set up in the correct configuration to have enough current flow.

It is important to ensure that all three battery packs provide the same electrical energy when connected.


These are our six backup options for charging an electric bike if you do not have a charger or in the event of an emergency. Among all of these possibilities, going to an e-bike charging station and using one of the charging ports there would unquestionably be the one that presented the fewest obstacles and the most favourable conditions.

It requires less technical knowledge than other methods and has a lower risk of damaging the battery packs installed in your eBikes.

However, suppose you are stranded someplace and need to charge your electric bicycle so you can return home. In that case, these alternative possibilities are ones that you should consider trying out since they have the potential to work out rather well.

When you go out for a ride on your electric bike, it is strongly suggested that you always bring along a spare battery just in case.

Not only can this allow you to avoid wasting time searching for an alternate way to charge your electric bike battery, but you can also feel confident knowing that you won't get stranded somewhere in the middle of nowhere if your battery dies.

Moreover, you also read our article about how to start an electric bike without a key.

Moreover, you should also read our article about how long it takes to charge an electric bike.

Frequently asked questions - FAQs

1. Can I charge eBike with 12V?

It is no longer adequate to charge a mobile phone or laptop in a camper van, for example, using the conventional 12 V connection since e-bike battery chargers nearly always demand a voltage of 230 V. The camper has to have the capability to charge electric bicycles.

2. Can you charge an electric bike by pedalling?

No, this is not the case in most cases; nevertheless, certain makers of electric bicycles may market their goods as bicycles that may recuperate lost power when you are braking or riding downhill.

Moreover, you should also read our previous article about how far can 1000W electric bike can go.

3. How many watts does an electric bike need to charge?

Charge time for a battery typically ranges from 500 to 800 watt hours (0.4 to 0.8 kilowatt-hours). However, this number can vary widely depending on the battery's capacity. Assuming an electricity rate of $0.10 per kilowatt-hour, a charge that can carry you 20–80+ miles will set you back between 5-8 cents.

We have also written an article about how to charge an Ancheer electric bike. It will help you a lot if you read it.

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