Yes, It is possible to add a second battery to an e-bike, to boost the range, boost performance and protect the battery of an e-bike. This will lead to an increase in the capacity of the e-bike or the mileage or kilometer coverage and convenience for the e-bike rider.
It is important to note at this point that, in order to avoid e-bike malfunction after installing a second battery, the e-bike owner should purchase and install a component called DATE X 2, which serves to safeguard the battery, increase range, and improve e-bike performance. In addition to the DATE X 2, we’ll need ST Connections (often male and female connectors), an e-bike battery splitter, and a spare battery.
But, why might an e-bike owner decide to add a second battery to his e-bike? Some of the reasons could be that the owner would want to boost the range of the e-bike, research also shows that an e-bike owner would decide to install another battery to boost the e-bike’s performance as well as protect the e-bike battery life. But there are procedures to follow in order to attach the second battery successfully.
The steps in adding a second battery to an e-bike, however, entails some technical requirements and are detailed as follows:
Step 1: Disconnect the seat from the frame.
The seat is only held to the frame by four screws. There are two screws located at the front and two in the back. Remove them gently and keep in a safe place because you will need then for coupling back.
STEP 2: Unplug the motor and the display wire.
Be safety conscious, make sure, that the bike is not turned on. Disconnect the wires that connect the motor and the display unit before removing the seat from the frame or throttle.
Gently remove the motor wire from the back of the bike, as well as the display wire that connects to the handlebar throttle and battery indicator.
The e-bike owner may also need to cut some vigor ties for the motor wire so that the seat will be lifted. To avoid injuring the wires which could lead to electrical spark or even shock, it is advisable to use a side cutter, but it can be done with scissors as well. Simply put, the installer must exercise great care and attentiveness in carrying out this conversion process.
Step 3: Remove the seat from the frame.
Because of the motor wire, the e-bike rider would need to slightly tilt the seat to lift it out of the frame. Simply tilt it to make removing the seat easier. This is of course, good of the e-bike.
Step 4: Take the seat out of the plastic case.
Flip the seat over to expose the bottom. Seven screws secure the seat to the plastic case. They can be found around the seat’s edges. The four internal screws should be left intact, please do not unscrew. These are the elements that hold the controller in place. Do not interact with the controller.
After the screws have been removed, remove the case.
Step 5: Make the battery wires visible.
After removing the seat from the plastic case, you will see the controller which has a silver color, and the e-bike’s battery which is blue. Wires should be running along the side of the case.
The wire has two ends, one red and one black. Anderson connectors are what they are called. They link the battery and the controller.
Step 6: Screw the second battery into the frame.
The battery should include a plate that can be attached to the bike’s frame via the bottle cage bosses. It will need to be secured to the frame with screws.
Gather the wires so that they point upwards so that we can connect the wires from the second battery to the e- bike’s wiring.
The battery must be installed backwards, but once in place, it must be connected securely.
After installing the back plate, slide the battery onto the plate and secure it with the key. We assume the battery that was installed is similar to the common ones in our experiment.
Step 7: Connect the second battery
To plug in the second e-bike battery, you need to first disconnect the in- built e-bike’s battery. Then once that is done, separate the connector wires in the case. By turning on the bike’s display, you can now see if you properly connect the second battery. Do not forget to turn on the battery indicator lights as well.
Step 8: Use a Battery Connector Wire in Parallel to connect both Batteries.
If we use a parallel connection, we will not have to reconnect and unplug the wires to change batteries. Make sure both batteries are fully charged and have the same voltage before connecting them. Ensure both batteries are 36 volts or the battery with the higher voltage will discharge into the lower voltage battery at a rapid rate, potentially damaging the cells or causing a fire. To prevent such, the proactive measure will be, to ensure that, the voltage of both batteries must be the same. Both batteries must be charged separately. When charging, make sure the parallel connector is unplugged. The second battery’s connection should be visible and easily detachable.
We highly advise against connecting a dead battery to a fully charged battery. Try to keep them both charged at the same level. Because the batteries are now linked in parallel, the controller will receive power from both.
When charging the batteries, the parallel connection cable to the second battery is exposed, allowing it to be removed.
In summary, do not be in a hurry. Kindly follow all steps described above and make sure every screw removed from their positions are fixed or screwed back in their proper position, all cables or wires should also be reconnected to the connecting points. It is certain that after following all the necessary procedures carefully, you will be able to successfully add a second e-bike battery to your bike.