Electric bikes are amazing. However, you should know that they’re only as good as their battery. Therefore, you should read this in-depth guide and learn how to find the best lithium battery for ebike for the money.
best lithium battery for ebike Reviews
#1 AW Lithium Rechargeable Battery
AW 36V 10AH / 36V 14AH / 48V 14AH Lithium Rechargeable Battery at a Glance
- Battery Type: Lithium
- Voltage: 36V or 48V
- Amperage: 10AH or 14AH
- Weight: 8.6lbs
- Longevity / Life: 1000 charging cycles
This AW model is a great-looking lithium battery and uses regenerative breaking to extend the battery life. It’s known as a “water bottle” mount because it’s lockable mount bracket bolts to a bicycle frame using the same threaded offsets as water bottle cage. The battery cell portion is lockable and removable for security.
It is absolutely necessary to waterproof this battery if it is being used in rainy conditions. Aside from that, under regular conditions, this lithium battery performs well. It has an impressive range of around 50 miles when combined with a bit of pedaling and the acceleration is also impressive.
AW offers lithium rechargeable Ebike batteries (36V 14AH and 48V 14AH) that mount on a rear rack that is included with the battery. The battery clicks into place on the rack and is locked in with a key, and is easy to remove and take indoors with you to prevent theft and in case rain is expected.
This is a popular format for Ebike batteries but sacrifices some storage space usually available on the rear rack. In general, the most powerful lithium batteries designed for electric bike conversion kits are being delivered in this format because of the ample size to accomodate the larger cell.
#2 Flying Horse ModWheel
Flying Horse ModWheel at a Glance
- Lithium ion
- Over 800 charging cycles
The Flying Horse ModWheel is an expertly made piece of kit that is both reliable and powerful.
It is compatible with 250, 500, 750 and 1000 watt conversion kits, depending on the version you choose, placing it between the AW and the Joyisi in terms of power.
With 11 amp hours, It can easily exceed 20 miles in a single charge, even when used consistently.
You can attach the Flying Horse ModWheel either to a pannier rack on the back of the bike or on the down tube. Mounting is secure, sliding onto a rear rack and clicking into place. Then, you can lock it using a simple key, to stop any forward-thinking thieves from sliding it off the back.
The most expensive product on this list, the Flying Horse ModWheel has top specs, such as high-quality Panasonic cells and excellent build quality.
Although it claims only 800 charging cycles compared to the 1000 from the AW and Joyisi models, you won’t be disappointed with this battery.
This e-bike battery is also available in a 48 volt 11.6 amp hour version.
Joyisi 48V at a Glance
- Lithium ion
- 1000 charging cycles
The Joyisi 48 volt is a fantastic battery, jam packed with impressive power and capacity.
With 15 amp hours to draw on from one charge, the Joyisi 48 volt battery has the longest range of the items on this list, somewhere between 30 to 40 miles, depending on weight, speed, terrain etc.
The 48 volts work with 1000 watt conversion kits, meaning it is also the most powerful product we selected. This is obvious when you need it most, giving you a strong boost up hills.
It is attached to the rear of the bike via an included rack. Like the Flying Horse, you can lock your battery into place using one of the two keys provided for security and safety.
There is a useful handle attached to the back which you can flick open when sliding the battery out of the holder.
This is probably the best performance battery included here, yet cheaper than the 48 volt Flying Horse version — an awesome choice to enhance your bike.
#4 Mighty Max Baoshi
Mighty Max Baoshi at a Glance
- Sealed Lead Acid
- 4 X 12V
The Mighty Max Baoshi is a sealed lead acid battery which immediately puts it in a different category to the previous three.
There are four 12 volt batteries which you can add to, or take out of, a series, depending on what your conversion kit requires. This gives you the flexibility to adapt your battery to your voltage needs, but isn’t as neat and discreet as the lithium batteries above.
Where these really win is in the price department. A total of 48 volts for around $165 makes them far cheaper than the 48 volts for around $460 you get from Flying Horse.
They are reliable and well built too, with shock absorbers and a spill-proof casing. The performance is not bad either, although not as good as the lithium batteries.
SLA batteries are slowly going out of fashion, but as long as the lithium batteries stay in their own league in terms of cost, batteries like the Mighty Max Baoshi will hold their place in the market for people experimenting with making electric bikes.
#5 Universal Power Group
Universal Power Group at a Glance
- Sealed Lead Acid
- 2 X 12V
Universal Power Group offer two 12 volt batteries that can be run in series or alone to match your conversion kit’s requirements.
At just over $50 they are a steal and good value for money for e-bike experiments. The downside to this is that they don’t come with any mounting mechanism, nor a bag to attach them to the frame. The company claims them to be spill proof, so I would recommend making these (as well as all other) batteries waterproof before you head out for a spin.
In terms of performance, they simply can’t be compared to the lithium batteries, the weight worsening the already poor range.
I would recommend the Universal Power Group batteries to people who are building their own e-bike and can’t bear the thought of blasting up to $400 on a lithium battery.
They are not the most powerful, nor the most practical for e-bikes, but for a cheap battery that does the job, the Universal Power Group has got you covered.