The MAZAVA HC02 is a compact active equalizer (balancer) for 4 series-connected 12-volt batteries (4S configuration). It is designed for automatic voltage equalization in batteries, which extends their service life and prevents overcharge or deep discharge. Suitable for 12/24/36/48 V systems, including solar panels, UPS, electric vehicles, and backup power sources. The device is equipped with an LED display for monitoring and works with various types of batteries.
Key Advantages
- Active balancing with up to 10 A current: automatically redistributes charge between elements, equalizing voltage with a difference of just 10 mV, preventing battery degradation and increasing their lifespan by 20-50%.
- Versatility: supports lead-acid (Lead-Acid, AGM, GEL), lithium-ion (Li-Ion), and lithium iron phosphate (LiFePO4) batteries.
- Automatic activation: starts working at voltages above 7 V, compatible with a 7-18 V range per element—ideal for various configurations.
- Low consumption: only 5 mA in standby mode, does not drain batteries unnecessarily.
- Reverse polarity protection: prevents damage from incorrect connection.
- Compact size (62x124x27 mm) and light weight: easily mounts in limited spaces.
- PWM support: compatible with solar system controllers for efficient charge management.
- Extends battery life: prevents sulfation and uneven wear, especially in series assemblies.
Technical Specifications (TTS)
- Model: MAZAVA HC02
- Configuration: 4S (for 4 batteries of 12 V each)
- Supported battery types: Lead-Acid (WET, AGM, GEL), Li-Ion, LiFePO4
- Nominal voltages: 7.4 V / 11.1 V / 12 V / 14.8 V (automatic adaptation to type)
- Balancing current: 0-10 A
- Voltage difference for activation: ≤10 mV
- Standby consumption: 5 mA
- Protections: reverse polarity, overload
- Size: 62 × 124 × 27 mm
- Weight: ≈ 0.2-0.3 kg
- Operating temperature: -20°C to +60°C
- Cable length: standard terminals for connection
- Certifications: CE, RoHS
Why MAZAVA HC02 is better than other equalizers in its price range
- Active balancing with high 10 A current: most budget models are passive or with up to 5 A current, which is slower and less efficient for large assemblies.
- Support for LiFePO4 and Li-Ion: not all analogs in this price are compatible with lithium batteries, limited to lead-acid only.
- Automatic activation and low consumption: better energy efficiency compared to models that constantly consume 10-20 mA.
- Versatility for 4S and PWM: suitable for solar systems where cheap balancers fail with variable charging.
- Quality protection and compactness: analogs like simple unbranded Chinese balancers often lack protections and are bulkier, with worse build quality.
- Excellent price/quality ratio: offers features of devices 30-50% more expensive, like from Victron or similar.
Ideal for solar energy systems, electric bicycles, boats, UPS, and any series battery assemblies. With MAZAVA HC02, your batteries will last longer and more reliably!