4A fast charger for 36V/37V e-bike and fat bike batteries with 5.5 x 2.1 DC plug
This original Sans charger is suitable for various brands of e-bikes and fat bikes (see below) with a 36V (or 37V) bike battery with a round 2-pin 5.5 x 2.1 charging plug.
The charger is suitable for batteries with both standard and smart BMS. This makes the charger widely applicable for various brands of e-bikes & fat bikes.
Fast charger 4 amps
The 4A (4 amps) designation indicates the charging current, or the speed at which the battery is charged. In practice, this means a 13Ah battery will take just over 3 hours to fully charge.
Check beforehand if your battery is suitable for fast charging. Charging with a higher amperage can lead to extra wear and a shorter battery life if the battery is not suitable for it.
Reliable quality as originally supplied
This charger is produced by Sans, the OEM manufacturer that supplies chargers for various European e-bike brands. This means you are choosing a charger with the same technology and reliability as the chargers standardly supplied by bike brands with their batteries.
Why a 42V charger belongs with a 36V or 37V battery
Although the battery says 36V or 37V, an e-bike battery is charged to approximately 42V when fully charged. This is because the lithium cells in the battery are each charged to 4.2V: 10×4.2=42. Therefore, 36V & 37V batteries in this category use a 42V charger.
Charging e-bike batteries & extending lifespan
How you charge and use an e-bike battery has a major impact on performance and lifespan. By handling charging and storage smartly, you prevent unnecessary wear and get the most out of your battery.
Read everything about e-bike battery charging and battery management
HERE: Battery Management
Charger not working? How to identify the problem
Does your charger seem to have stopped working or is your battery not charging (properly)? In many cases, it’s not immediately clear whether the problem lies with the charger or the battery. Causes can range from a faulty connection (RCA plug) to a problem in the battery or a malfunction in the charger itself.
Not sure where the problem lies? Follow our self-diagnosis step-by-step plan and easily discover whether your charger or battery needs to be replaced. Click
HERE for the self-diagnosis (=Charger or battery defective?).
