How to Charge Your Wisper Rack Battery
Keeping your Wisper e-bike battery fully charged ensures optimal range and performance. Follow these simple steps to safely and effectively charge your Wisper rack-mounted battery.
Video Guide: How to Charge Your Wisper Rack Battery
Step by Step Guide:
Remove the Weatherproof Cap
Before charging, remove the weatherproof cap from the battery’s charging port. This cap protects your battery from dust and moisture — keep it somewhere safe while charging.
Place the Charger in the Charge Socket
Insert the charger connector into the battery’s charging socket. Ensure the plug is firmly seated to establish a good electrical connection.
Check the Charger Indicator Lights
When connected, the charger will show one red light and one green light.
This indicates that the charger is powered on, but charging has not yet started.
If both lights remain steady, double-check that the charger plug is fully inserted into the battery.
Plug the Charger into a Mains Socket
Once the charger is connected to the battery, plug the charger power cable into a mains socket (standard wall outlet). The red light should stay on while charging is in progress.
Wait for the Battery to Fully Charge
While charging, the red indicator light will stay illuminated. Charging times vary depending on the battery capacity and remaining charge level (see step 7 below).
When Charging Is Complete
When the battery is fully charged, the red light will change to green. This means charging is complete and it’s safe to unplug the charger.
Charging Times
Typical charging times:
Half charge: around 2–3 hours
Full charge: around 4–6 hours depending on battery model and size
Avoid leaving your battery connected to the charger for extended periods once charging is complete.
Remove Charger and Replace Weatherproof Cap
Unplug the charger from the mains socket first, then from the battery.
Once disconnected, replace the weatherproof cap securely to protect the charging port.
Safety Guidelines
Always charge your Wisper battery indoors in a dry, well-ventilated area.
Use only the official Wisper charger supplied with your bike.
Do not cover the charger or battery during charging.
Keep away from flammable materials and direct sunlight.
Never attempt to charge a damaged or wet battery.
Summary
Charging your Wisper Rack Battery is quick, easy, and safe when done correctly. Follow these steps each time to maintain battery health, maximise performance, and ensure a longer lifespan for your e-bike.