1、 Core technical parameters

Brand: LiitoKala

Product model: 18-HL4830

Model: 18650

Capacity: 3400mAh

Battery pack structure: 13 series and 9 parallel

Nominal voltage: 48V

Nominal capacity: 30Ah

Peak voltage: 54.6V

Operating voltage range: 36.4V to 54.6V

Charging voltage matching: 54.6V standard charger

Continuous discharge current: ≤ 30A

Peak discharge current: 60A

Power: ≤ 1500W

Under normal usage conditions, the cycle life is ≥ 1000 times

Size: 356 × 175 × 70mm

Weight: 7kg

2、 Security Protection System (BMS)

This battery pack is equipped with a professional 13S 48V 30A BMS battery management system, which provides multiple safety protections in all aspects. The specific functions are as follows:

1. Overcharge protection, when the battery voltage reaches the full charge threshold of 54.6V, automatically cuts off the charging circuit to prevent damage to the battery cells due to overcharging;

2. Over discharge protection, when the battery voltage drops to the over discharge threshold of 36.4V, the discharge circuit is automatically cut off to avoid deep discharge damage to the battery cell;

3. Overcurrent protection, strictly limiting the continuous discharge current to ≤ 30A and peak discharge current to ≤ 60A, to prevent circuit overload and heating;

4. Short circuit protection: When a circuit short circuit is detected, the output is immediately cut off to avoid safety hazards such as fire and explosion;

5. Temperature protection, real-time monitoring of battery cell temperature, automatic suspension of charging and discharging in case of abnormal high and low temperatures, ensuring safe use;

6. Cell balancing, automatically balancing the voltage of each string of cells to ensure the overall stability of the battery pack and extend its service life.

3、 Structural and functional design

This product combines practicality and convenience in its structural design. The specific design is as follows:

1. Foldable metal handle, smooth and burr free surface, anti slip design that does not harm hands, easy to carry, install and disassemble batteries;

2. Three core integrated power interface, integrating charging and discharging functions, supporting 54.6V standard charger, maximum instantaneous current 60A, continuous current 30A, plug and play;

3. The brushed metal shell is drop resistant and impact resistant, suitable for outdoor cycling scenes, can resist slight collisions and wear, and is sturdy and durable.

4、 Usage and Maintenance Guide

（1） Charging and discharging specifications

1. The charging voltage requires the use of a standard 54.6V charger, and non-standard chargers are prohibited to avoid damaging the battery;

2. The continuous current of the controller should be set to ≤ 30A, and long-term use of 60A peak current discharge is prohibited;

3. After the battery is fully charged, disconnect the charger in a timely manner to avoid long-term overcharging that may damage the battery cells.

（2） Daily maintenance

1. During daily use, avoid severe collisions and squeezing of the battery to prevent damage to the outer shell and internal structure;

2. Regularly check if the interface is loose and if the wires are intact. If any abnormalities are found, stop using immediately and troubleshoot the problem;

3. When idle for a long time, keep the battery level at 50% -60% (corresponding to a voltage of about 51V-52V), store it in a cool and dry place, and avoid high temperature and humid environments;

4. Check the battery status once a month. If any abnormalities such as swelling or leakage are found, stop using it immediately and contact after-sales service.

5、 Precautions

1. Do not disassemble the battery, and do not modify the battery structure or parameters on your own, otherwise you will lose your safety guarantee;

2. Do not place batteries in high temperature, direct sunlight, or humid environments to avoid a decrease in battery performance;

3. Suitable motor power ≤ 1500W, exceeding this power range may cause battery damage;

4. The controller must be compatible with the battery and matched with a 48V system with a continuous current of ≤ 30A. It should be used strictly according to the above parameters. Improper operation may result in shortened battery life or safety hazards.