Precautions for selecting an electric bicycle charger

1、 Core principle: Matching technical parameters

1. voltage matching
   • Key principle: The output voltage of the charger must be strictly consistent with the rated voltage of the battery.
     • Common voltages: 48V, 60V, 72V, etc.
     • Risk: Voltage mismatch can cause the battery to be undercharged or overcharged, which may lead to battery swelling, shortened lifespan, and even fire risk in the long term.
   • Example:
     • 48V batteries (such as 48V12Ah, 48V20Ah) require the selection of a 48V charger;
     • A 60V charger is required for 60V batteries (such as 60V20Ah).
2. current match
   • Recommended range: The recommended output current of the charger is 0.1-0.2 times the battery capacity (such as choosing a 1.2-2.4A charger for a 12Ah battery).
     • Low current: Charging time is too long, affecting usage efficiency;
     • Excessive current: may damage the battery and shorten its lifespan due to heat generation.
   • Common configurations:
     • 48V12Ah battery: 1.2A-2.4A charger;
     • 48V20Ah battery: 2A-4A charger;
     • 60V30Ah battery: 3A-6A charger.
3. Battery type compatibility
   • Special use: Lead acid batteries and lithium batteries require corresponding chargers, and mixing them may pose safety risks.

2、 Security specifications: authentication and protection functions

1. Execution standards and certification
   • National standard priority: Select products that comply with GB 42296-2022 "Safety Technical Requirements for Chargers for Electric Bicycles".
   • Safety certification: Check the 3C, CE, ROHS and other markings to ensure quality compliance.
2. Safety protection function
   • Essential functions: overcharge protection, short circuit protection, overheating protection, anti reverse connection protection.
   • Advanced features: intelligent power-off, timed charging, LED status indicator.
3. Shell and interface design
   • Shell material: Choose materials that are resistant to high temperatures and impacts, and avoid using flammable materials.
   • Interface matching: Confirm that the charger interface matches the shape of the vehicle charging port (such as T-shaped product header, three vertical product header, etc.).
   • Power cord requirements: Must pass CCC mandatory certification to avoid using damaged or inferior power cords.

3、 Brand and Channel: Quality and After sales Guarantee

1. Brand Choice
   • Priority should be given to well-known brands: well-known brands provide more reliable product quality and after-sales service.
   • User feedback: Refer to feedback from other users and avoid choosing products with poor reputation.
2. Purchase channels
   • Legitimate channels: brand exclusive stores, large shopping malls, official flagship stores.
   • Online store selection: Prioritize platforms with high reputation and good reviews, and verify product quality upon arrival.
   • Voucher retention: Request invoices and warranty cards to ensure after-sales rights.

36V Lithium Battery For Ebike