The primary application areas for Ginkgo’s lithium‑ion battery products are lightweight electric vehicles, such as electric two‑wheelers, three‑wheelers, and low‑speed four‑wheel mobility scooters. The main voltage specifications include: 48V、60V、72V So, what are the requirements and precautions when it comes to compatibility with external chargers and charging stations? And how should you make the right selection? We’ll provide a detailed explanation next.

I. Voltage Compatibility

1 Common misconception: Nominal voltage = Charging voltage

The nameplates on the housings of Ginkgo lithium‑ion battery packs all clearly indicate “ Charging limit voltage “”, this voltage is actually the battery pack’s full‑charge voltage, and it requires an external charger. / The output voltage of the charging pile must not exceed this value to prevent the risk of overcharging under extreme conditions.

2 , the “charge‑limit voltage” for battery packs of each voltage rating

All Ginkgo lithium‑ion battery packs use lithium iron phosphate cells; therefore, the charging voltage limit for the battery pack is… =3.65V × number of series. Thus, the following values are obtained:

48V Battery pack charging limit voltage =54.8V ( 3.65V × 15 串) , ± 0.05V

60V Battery pack charging limit voltage =69.4V ( 3.65V × 19 串) , ± 0.05V

72V Battery pack charging limit voltage =84.0V ( 3.65V × 23 串) , ± 0.05V

Once you know the “charge‑limit voltage” of each battery pack corresponding to the aforementioned voltage ratings, simply select a charger with an output voltage that matches it.

II. Current Adaptation

1 , Calculation of Charging Current

Formula 1 : Charging current ( A ) =  Battery capacity ( Ah ) × Charge rate ( C )

Formula 2 : Charging time ( h ) = 1 / Charging rate ( C )

Charging current supported by Ginkgo battery products ≤ 0.5C (Backward compatibility)

2 , For example: with 60V54Ah Take batteries as an example.

Maximum continuous charging current supported =54 × 0.5=27A , charging time =1/0.5=2 Hour.

That is, the selected charging current. 27A the charger or charging station, 2 It takes about an hour to fully charge the battery.

Backward compatible; optional charging current less than 27A of the charger, such as 10A，15A It can also be used, though the charging time will be correspondingly longer.

III. Interface Adaptation

Currently, Ginkgo Battery products use two types of charge/discharge interfaces:

One is standard. A品-shaped opening. Supported continuous charge and discharge current ≦60A, for battery pack products with a capacity of 54 Ah or less;

One is BCR-A-200A all-copper terminal block. Adopting a separate positive and negative electrode configuration, Supported continuous charging current ≦200A, for battery pack products with a capacity of 100 Ah or greater.

4. Precautions for Selecting a Charger

A compliant charger should meet stringent safety protection and certification requirements, which are specifically reflected in the following four aspects:

1 The charger must incorporate safety protection features, including overvoltage, overcurrent, reverse polarity, and short-circuit protection.

2 , Certification Mark: Look for GB/T 34131-2017 National standard certification for electric vehicle chargers.

3、 EMC Protection: Through GB/T 17626 Electromagnetic Compatibility Testing

4 , Wire gauge specifications: The higher the charger’s current, the thicker the output wires—manifested as a larger diameter for both the positive and negative leads. This reduces heat loss throughout the circuit during high‑current charging. Typically, 10A Charger, wire gauge ≥ 1.5mm ²; 30A Charger, wire diameter ≥ 4mm ²; and so on.

Conclusion:

Choosing the right charger can effectively reduce malfunctions in lithium‑battery use and, accordingly, extend the battery’s service life.

As a specialized manufacturer of lightweight lithium‑ion battery packs for electric vehicles, Ginkgo Battery would like to remind you: charging is one of the critical aspects of lithium‑battery safety management. Never compromise by opting for inexpensive, non‑compliant chargers, as this can adversely affect the battery’s normal operation.