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HELTEC — Better Batteries
Heltec delivers smart solutions for battery balancing, testing, and protection.
HELTEC — Smarter Energy
Every battery has a story. Heltec believes that with the right technology, every battery can perform better and last longer.
We specialize in battery management and testing solutions, covering active balancing, battery analyzers, BMS technology, and battery pack maintenance. Our products are created for people who work with batteries every day—from DIY enthusiasts and makers to engineers and energy storage users.
DS Series — Smart Analysis
Spot Welder — Smart Welding
Lead acid equalizer
What does HELTEC specialize in?
HELTEC specializes in battery management and energy technology, offering solutions for battery balancing, testing, protection, and maintenance.
Why choose HELTEC?
We combine reliable technology, practical design, and professional support to help users manage batteries more safely and efficiently.
Who are HELTEC products designed for?
Our products are designed for battery enthusiasts, DIY users, technicians, and energy storage applications.
 4S Active Balancer |  6S 5A Active Blancer with Voltage Display Lifepo4 Equalizer Lipo/LTO Battery... |  6S 5A Active Balancer with Voltage Display Lithium Titanate Capaci... |  8S 5A Active Balancer,Heltec BMS 4-8S Active Balancer with Voltage... |  Heltecbms 4S 5S 6S Equalizador Ativo 5A Grupo inteiro Balancer Lifepo4/Lipo L... | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — | — | — no data |
| Product Form | With LCD & ABS Case | With LCD & ABS Case | With LCD & ABS Case | With LCD & ABS Case | Bare Board (No Case) |
| Battery Type | NCM / LFP | LTO Only | NCM/LFP | NCM / LFP | NCM/LFP/LTO |
| Voltage Range | 2.7V – 4.2V | 2.7V ~ 4.2V | 2.7V ~ 4.2V | NCM/LFP: 2.7-4.2V LTO:1.8V-2.7V | 1.8V ~ 4.5V |
| Balancing Current | Max 5A | Max 5A | Max 5A | Max 5A | Max 5A |
Description of the Connection Position
Main Parameters of the Active Balancer
Connection Diagram
Precautions for Use
1.During use, the design parameters and use conditions must be followed, and the parameters of this specification must not be violated. Otherwise, it is easy to damage the instrument and then damage the battery pack.
2.During use, the cable must be connected to the battery in the order of the instruction manual, and then connected to the instrument after checking.
3.The product will generate a certain amount of heat during use, so avoid using the product in a high temperature environment.
4.If any abnormal situation occurs during use, please stop using it immediately,return it to the original factory or ask professional maintenance personnel for repair.
5.This product has undergone a lot of reliability tests, and its reliability is far higher than that of general equalizing equipment on the market. At the same time,the process of the battery cell must be guaranteed to minimize the occurrence of combustion.
4S Active Balancer | 6S 5A Active Blancer with Voltage Display Lifepo4 Equalizer Lipo/LTO Battery... | 6S 5A Active Balancer with Voltage Display Lithium Titanate Capaci... | 8S 5A Active Balancer,Heltec BMS 4-8S Active Balancer with Voltage... | Heltecbms 4S 5S 6S Equalizador Ativo 5A Grupo inteiro Balancer Lifepo4/Lipo L... | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — | — | — no data |
| Product Form | With LCD & ABS Case | With LCD & ABS Case | With LCD & ABS Case | With LCD & ABS Case | Bare Board (No Case) |
| Battery Type | NCM / LFP | LTO Only | NCM/LFP | NCM / LFP | NCM/LFP/LTO |
| Voltage Range | 2.7V – 4.2V | 2.7V ~ 4.2V | 2.7V ~ 4.2V | NCM/LFP: 2.7-4.2V LTO:1.8V-2.7V | 1.8V ~ 4.5V |
| Balancing Current | Max 5A | Max 5A | Max 5A | Max 5A | Max 5A |
Description of the Connection Position
Main Parameters of the Active Balancer
| Product model | DS0855 |
| Applicable string number | 4S |
| Applicable battery type | NCM/LFP |
| Operating voltage range | NCM/LFP: 2.7-4.2V |
| Balance voltage accuracy | 5mV (typical) |
| Balance mode | The entire battery group participates in active balancing of energy conversion at the same time |
| Balance current | When the voltage difference is about 1V, the maximum balancing current is 5A, and the balancing current decreases as the voltage difference decreases. The minimum balancing starting voltage difference of the instrument is 0.01V. |
| Undervoltage protection | NCM/LFP: 2.7V |
| Static operating current | 13mA |
| Ambient Temperature | -10?-60? |
| External power | No external power supply is required, relying on the internal energy transfer of the battery to achieve the balance of the entire battery group. |
Connection Diagram
Precautions for Use
1.During use, the design parameters and use conditions must be followed, and the parameters of this specification must not be violated. Otherwise, it is easy to damage the instrument and then damage the battery pack.
2.During use, the cable must be connected to the battery in the order of the instruction manual, and then connected to the instrument after checking.
3.The product will generate a certain amount of heat during use, so avoid using the product in a high temperature environment.
4.If any abnormal situation occurs during use, please stop using it immediately,return it to the original factory or ask professional maintenance personnel for repair.
5.This product has undergone a lot of reliability tests, and its reliability is far higher than that of general equalizing equipment on the market. At the same time,the process of the battery cell must be guaranteed to minimize the occurrence of combustion.
HELTEC — Better Batteries
Heltec delivers smart solutions for battery balancing, testing, and protection.
HELTEC — Smarter Energy
Every battery has a story. Heltec believes that with the right technology, every battery can perform better and last longer.
We specialize in battery management and testing solutions, covering active balancing, battery analyzers, BMS technology, and battery pack maintenance. Our products are created for people who work with batteries every day—from DIY enthusiasts and makers to engineers and energy storage users.
DS Series — Smart Analysis
Spot Welder — Smart Welding
Lead acid equalizer
What does HELTEC specialize in?
HELTEC specializes in battery management and energy technology, offering solutions for battery balancing, testing, protection, and maintenance.
Why choose HELTEC?
We combine reliable technology, practical design, and professional support to help users manage batteries more safely and efficiently.
Who are HELTEC products designed for?
Our products are designed for battery enthusiasts, DIY users, technicians, and energy storage applications.