Chengdu Heltec Energy Technology Co., Ltd.
Battery Maintenance and Test
Battery Equalizer 2-24S 15A Intelligent Active Balancer For Lithium Battery
Specifications:
2-24S 15A
Product Information
| Brand Name: | HeltecBMS |
| Material: | PCB board |
| Origin: | Mainland China |
| Warranty: | One year |
| MOQ: | 1 pc |
| Battery Type: | NCM/ LFP/ LTO |
Customization
- Customized logo
- Customized packaging
- Graphic customization
Package
1. Battery equalizer*1set.
2. Anti-static bag, anti-static sponge and corrugated case.
Purchase Details
- Shipping From:
1. Company/Factory in China
2. Warehouses in United States/Poland/Russia/Brazil
Contact Us to negotiate shipping details - Payment: TT is recommended
- Returns & Refunds: Eligible for returns and refunds
Features
- Super-capacitors as medium to achieve active energy transfer equalization
- Continuous 15A equalization current
- Equipped with Bluetooth and phone APP software
- Fast and simultaneously balancing
Working Principle
The equalization process of this active equalizer consists of the following three steps, which are cycled sequentially until the maximum differential pressure is within the set range:
1. Detecting the largest and smallest monomers;
2. Maximum monomer charging to the super-capacitor of the equalizer, charging current is the set current, maximum 15A;
3. The super-capacitor of the equalizer discharge to the smallest monomer, discharging current is the set current, maximum 15A;
4. Repeat steps 1 to 3 until the differential pressure is within the set range.
Main Technical Indicators
|
SKU |
HT-24S15EB |
|
Applicable Number of Strings |
2-24S |
|
Cascade Connection |
Support |
|
Size (mm) |
L313*W193*H43 |
|
Net Weight (g) |
2530 |
|
Reserved Battery Protection |
Support disordered power-up detection/protection |
|
External Power Supply |
DC 12-120V |
|
Applicable Battery Type |
NCM/ LFP/ LTO |
|
Voltage Acquisition Range |
1.5V~4.5V |
|
Undervoltage Protection - Hibernation Voltage |
Customizable settings on APP：1.5-4.2V. |
|
Equalization Method |
Single-channel transfer separately, point-to-point energy transfer. |
|
Voltage Equalization Precision |
Customizable settings on APP: 1mV (typical value) |
|
Whether External Power Supply is Required |
Battery power available (precision: 3mV),
external power (precision: 1mV) |
|
Power-down Detection Function |
Support |
|
Wrong Wiring Protection Function |
Support |
|
Malfunction Alarm Function |
Support |
|
Buzzer |
Customizable settings on APP |
|
Power Consumption |
When the equalization system working≈1W, the equalization system closed≈0.5W. |
|
Working Environment Temperature |
-20℃~ +45℃ |
The Strategy of Capacity Equalization
In order to deal with the situation of excessive energy transfer when the capacity difference is relatively small, the 15A equalizer has designed an equalization strategy to deal with this situation. When the equalization cycle is finished, the original smallest cell becomes the largest cell and the largest cell becomes the smallest cell, and the equalizer waits for 3 minutes to let the battery voltage have a recovery time. If the largest cell becomes the smallest cell and the smallest cell becomes the largest cell after the 3-minute period, it means that the equalization has been over-equalized, and at this time the equalizer will reduce the equalization current by half, for example, the original equalization current is 15A, but now it is reduced to 7.5A. The equalizer automatically reduces the equalizing current by half. If there is still an over-equalization situation, continue to reduce the equalization current until the pressure difference is within the set range.
