Solplanet Ai-HB 175A
The Solplanet Ai-HB G2 (high-voltage, 7.5-20 kWh) is a modular energy storage solution designed to easily adapt its capacity to the actual needs of a home or small business. Its standout feature is the segmented construction - allowing for incremental expansion without replacing the entire battery, while the whole system operates under the control of a highly advanced BMS with cell monitoring, ensuring stable performance and extended lifespan.
The applied chemistry, LFP (LiFePO4), prioritizes safety: offering superior thermal resistance, high longevity, and predictable parameters over the long term compared to NMC solutions. In practice, this translates to reduced risks of overheating and better cost-effectiveness with frequent charging and discharging cycles.
The declared number of cycles and the warranty provided here represent a genuine promise of multi-year operation - the more cycles, the longer the battery maintains its useful capacity. The IP65-rated enclosure also helps, simplifying installation outdoors. The Ai-HB G2 is designed for compatibility with Solplanet hybrid inverters (e.g., T2 and T3 series), making it suitable for grid-connected systems, self-consumption setups, and as a backup power element.
Ranking
Specifications
Pros and cons
The use of LiFePO4 batteries with a stated lifespan of 6,000 cycles at 90% Depth of Discharge translates to approximately 16+ years of daily use. For comparison, the BYD HVS/HVM also specifies the same threshold (6,000 cycles), placing the G2 in the upper tier of the HV segment for prosumers.
The system is built from independent 2.56 kWh modules, which allows for gradual expansion of capacity from 7.68 to 20.48 kWh per tower without replacing existing components. By using a combiner box, it is possible to connect 4 towers and achieve a total capacity of up to 81.92 kWh - a level of flexibility not available in single-unit solutions offered by competitors (e.g., Pylontech Force H2).
The charging and discharging cycle efficiency of ≥95% is at the level of leading HV segment products (e.g., SENEC Home V3: approximately 94%). The IP65 rating allows for outdoor installation without the need for additional protective enclosures, which reduces costs and simplifies assembly.
Solplanet is a brand of AISWEI - the former Chinese subsidiary of SMA (established in 2007), which ranked 6th in the global ranking of PV inverter manufacturers according to S&P Global Commodity Insights in 2023, with annual production capacity exceeding 3 GW. This is a significant argument in favor of its financial stability and ongoing service availability.
The battery management system monitors each individual cell (not just the pack) independently, which allows for the early detection of thermal anomalies and extends the lifespan of the pack. This solution is comparable to the BMS used by AlphaESS Smile T10, and is less common in products from the tier-2 segment.
Ai-HB G2 is certified exclusively for use with Solplanet hybrid inverters (T2/T3 series). Integration with inverters from other manufacturers (SMA, Fronius, Huawei) is only possible via Modbus, with limited functionality - unlike the BYD HVS/HVM, which are natively compatible with >20 inverter brands.
Meanwhile, Solplanet's offering includes the Ai-HB G2 Pro series, which boasts a declared lifespan of 8,000 cycles (approximately 33% more than the standard G2's 6,000), while maintaining a similar modular architecture. For clients evaluating the total cost of ownership (TCO) of the G2 Pro, it can potentially offer a lower cost per kWh over the system's lifespan.
Alternatives
About the Ai-HB G2 Series (High Voltage Battery 7.5 to 20 kWh) series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.