995 in stock
Weight: 0.185 kg | Air Shipping Cost: $1.80375
Freight is calculated based on 9.75/kg
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A 4A smart active balancer
A 4A smart active balancer
Applicable Series: 2-24 series
Compatible Battery Types: NCM/LFP/LTO (Nickel Cobalt Manganese / Lithium Iron Phosphate / Lithium Titanate) – Fully Compatible
Applicable Series for Power Supply Range:
The total minimum voltage of the battery pack should be greater than 30V. Recommended values:
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NCM Batteries: ≥10 series
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LFP Batteries: ≥12 series
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LTO Batteries: ≥20 series
Single Cell Voltage Working Range: 1.0V ~ 4.5V
Voltage Balancing Accuracy:
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Voltage measurement accuracy: ±1mV
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Voltage balancing accuracy: ±1mV
This product is calibrated by Keithley DMM7510
Balancing Method:
Patent balancing architecture using a flying capacitor method, combined with point-to-point energy transfer algorithm for high-efficiency balancing.
Balancing Current:
APP customizable settings: 1-4A
Due to the use of constant current and constant voltage technology, the balancing current is independent of the battery voltage difference.
Offline Detection:
Supports offline detection.
Undervoltage Protection Sleep Voltage:
Undervoltage sleep voltage can be customized in the APP: 1.5V-4.2V
Static Working Current:
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Balancing off: 10mA
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Balancing on: 25mA
Product Dimensions (mm): L140 x W128 x T22
Product Weight Including Packaging: 470g
Operating Temperature: Operating environment temperature (specific range not provided).
External Power Supply Required:
No external power supply required. The balancing is achieved through internal energy transfer from the battery pack itself.




















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Shopping Agent
- All products are based on the photos and links provided by the customer. We only act as an agent to purchase goods from China on behalf of the customer.
- After purchasing the products, we will inspect them, take photos and videos for the customer. Shipment will be arranged after the customer's confirmation.
3.Alibaba has a large number of extremely low-priced products, such as items normally priced at $15 being listed for $0.99. For these products, we generally ignore them, as they waste time between us and the customer. You can use common sense to judge, or you can communicate with them to understand the result. These unrealistic prices are likely scams. Possibility 1: They set the price very low and charge a high shipping fee to attract customers. 2: It could be some unknown method of drawing in traffic that wastes your time and effort. 3: They might lure customers into making fraudulent payments through abnormal transaction methods.
Inspection Standards
- We will inspect the appearance, color, functionality, size, and material of the goods and provide feedback to the customer.
- However, we do not make value judgments about the products. For example, questions like "Do you think it's good quality?" or "Is this clothing beautiful?" are ones we cannot answer.
- We also cannot guarantee the lifespan of the products. We are not the manufacturer; we are a shopping agent. Due to randomness and variability, a product may last for ten years or break down after two months.
Shipping Restrictions for Special Goods
Products containing liquids and powders cannot be shipped by air. Products with batteries can be shipped by air, but they will need to be shipped from Hong Kong to you, and the shipping cost will be $3 more per kilogram than regular products. Customers need to understand these basic facts to reasonably arrange for air or sea shipping.
After-Sales Responsibility
- If you are not satisfied when our customer service sends the real product pictures or videos for confirmation, we can arrange for the product to be returned to the supplier.
- If any product fails the quality inspection, we will take responsibility.
- In case of damage or loss during transportation, the shipping company will be responsible.
Local warehouse Beirut
For products on the "Local Warehouse Beirut" page, please contact the Beirut customer service directly to make a purchase. You can either buy in-store or have it shipped to you.
About Color Differences
Due to differences in display screens, slight color variations are inevitable for each product. We can only rely on our experience to determine whether the color difference is within an acceptable range, as there is no fixed standard. We will notify the customer only if the color difference is significant.