A 21 kWh residential store built around the Solarbank Max AC
This pack brings together Anker’s Solarbank Max AC unit and two BP7000 batteries. The kit shows 21 kWh of capacity, while the designation gives a power of 3.5 kW. The datasheet states that the main unit already carries 7000 Wh (7 kWh) and that it can be expanded up to 42 kWh, so this kit sits about halfway to the stated maximum capacity.
Who is this configuration for?
Family homes
A family whose consumption stays high after sunset (cooking, a delayed washing cycle, computers, lighting) will find in a reserve of this size a way to spread solar production over more of the day. Still, check your own load curve before sizing.
Small professional activities
An office, a village bakery or a guesthouse may consider this kind of storage to smooth its consumption profile. Studying the site, the meter and the protections is a job for an installer.
What the specifications say
The 230 V output is described as bidirectional at 3500W, meaning the unit can both receive and supply energy on the alternating-current side. The photovoltaic input is 3500W. The Wi-Fi function is listed as present, which suggests remote monitoring; the detail of the functions is in Anker’s documentation.
On robustness, an IP66 rating and a -20° to 55° temperature range are given, along with LiFePO4 chemistry. The main unit weighs 73 kg, so plan on handling by several people or lifting equipment.
Installation and connection
- Choose a location whose floor can bear the weight of the complete assembly, batteries included.
- Leave enough clearance for access to the connectors and for cable routing.
- Entrust the grid connection and commissioning to a qualified installer, who will check compatibility with your electrical panel.
- Pair the device with your Wi-Fi network by following the manual.
Technical characteristics
- Brand: Anker
- Kit capacity: 21 kWh
- Battery type: LiFePO4
- Battery capacity: 7000 Wh (7 kWh) Expandable up to 42 kWh
- Output 230 V: 3500W biderectional
- PV input: 3500W
- Wifi-function: Yes
- Temperature range: -20° to 55°
- Weatherproof rating: IP66
- Weight: 73 kg
Safety
Never exceed the stated power values, and use cables sized for them. Do not open the housings: stored energy remains present even when nothing is being produced. Keep flammable materials away from the unit and do not cover it. After a heavy knock, have it checked before putting it back into service.
Care and storage
Clean the surfaces with a slightly damp cloth with the unit powered down. Periodically check the connections and look for any trace of moisture inside the cable passages. If the system is to stay idle for a long time, follow the manual for the charge level to keep.
