The LG Li-ion battery is integrated into the down-tube of the frame (the largest and longest tube of the frame). The battery is inserted into the frame through an opening below the bottom bracket shell.
The capacity of the battery is 336 Wh. Our electric system is 48 V, which is a higher voltage than most electric bicycles have. This means that at the same capacity, Ampler bikes have more range.
Combined with efficient energy control, our bikes have an average electric range of 70 km with 100% motor support. Reducing electric assist will increase the range to up to 100 km.
The battery is charged with the charger that comes with the bike. The process is similar to charging your laptop computer – you have to connect the bike to a standard wall power outlet (110–240 V AC). The bike has a magnetic connector for connecting to the charger. You cannot remove the battery from the bike for charging, which means you have to charge the bike next to a power outlet. The charger is not waterproof, so we recommend charging the bike indoors.
The average range of the electric assist is 70 km, and if you run out of juice, you simply pedal it like you would a regular bike. Charging the battery from drained to full takes only 2.5 hours. You can connect your charger to any regular power outlet (230 V AC).
After running out of battery power or turning off the assist, you can still ride your Ampler like any regular bicycle.
The battery’s healthy lifespan is about 600 full cycles, which equals about 40,000 km. After 40,000 km, the battery still has about 70% of the original capacity left.
Yes. The frame and the battery are designed in such a way that every professional bike shop is able to remove the battery and, if needed, replace it with a new one in under an hour. The replacement battery can be ordered directly from Ampler Bikes. The battery is subject to a 2-year warranty.
The frame and the battery are designed in such a way that every professional bike shop is able to remove the battery and, if needed, replace it with a new one in under an hour.
To remove the battery, you would have to remove the following in the order given:
2) bottom bracket eccentric
3) power panel wires
4) battery together with the motor controller
To remove the battery, you will need specific instructions provided by Ampler Bikes, and professional bicycle maintenance tools.
The battery is weather-proof. However, keeping the bike outside in the cold will decrease the battery’s capacity and range. This will not damage the battery or its lifespan. If the temperature rises, the range will be back to normal again.
Read more at How should I take care of my bike in the winter?
We have not had any overheating issues with our batteries. That’s because the battery is never used at maximum power. Instead, the bike is operated at relatively low power usage.
As the battery is in the aluminium frame tube, the alloy acts as a heatsink and safely cools down the battery while riding. Therefore, the battery is protected from overheating. The battery has an electrical battery management system that protects the battery from extremes by shutting down power when needed.
The average range of 70 km is calculated based on the 250 W and 25 km/h assist mode.
Reducing electric assist will increase the range to up to 100 km. At full power and speed, you will get a range between 40 and 50 km with one charge.
The extended range with a lighter battery is possible thanks to the high-quality LG battery, the light weight of the bike and the efficient control technology of the motor.