Bluetti EP800
9920 Wh, 7600 W
Generac PWRcell 2
Home battery · PWRcell 2. Specs from the manufacturer page (checked ).
The Generac PWRcell 2 is a home battery energy storage system with 9 kWh usable energy and 5.2 kW maximum continuous power in its M3 configuration. With two battery cabinets it scales to 36 kWh and 11.5 kW. It supports whole or partial home backup on a 120/240 V single-phase grid.
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Capacity
9000Wh
Continuous
5200W
Solar input
7500W
Chemistry
NMC
Weight
126.1kg
Warranty
10yr
Key features
- Battery configurations from 9 kWh (M3) to 36 kWh (two M6 cabinets), using 3 kWh battery modules
- Maximum continuous power 5.2 kW (M3) up to 11.5 kW (two cabinets); maximum AC start capacity 65 A up to 130 A
- AC-coupled architecture enables parallel backup with solar and battery for up to 26.5 kW of backup power
- Automatic transfer time under 50 ms through the Smart Disconnect Switch
- Roundtrip efficiency 88%
- Connectivity: Wi-Fi, LTE, CAN, Ethernet; real-time monitoring from a smartphone or tablet
- Works with PWRmanager to control home loads and extend battery backup; works with select ecobee Smart Thermostats
- NEMA 3R enclosure rated for indoor and outdoor installation; battery modules warranted 10 years or 7.56 MWh
What it is for
- Whole or partial home backup
Specifications
| Capacity | 9000 Wh |
|---|---|
| Continuous output | 5200 W |
| Solar input | 7500 W |
| Battery chemistry | NMC |
| AC output voltage | 120/240 V |
| Weight | 126.1 kg (278.0 lb) |
| Dimensions | 58.2 × 27.1 × 177.7 cm (22.9 × 10.7 × 70.0 in) |
| Warranty | 10 years |
From the Generac page. Values the manufacturer does not publish are left out.
What is in the box
- ecobee Smart Thermostat Enhanced
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 7.1 days |
| Chest freezer | 100 W (500 start) | yes | 9.9 days |
| CPAP (no humidifier) | 35 W (40 start) | yes | 8.5 days |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 5.0 days |
| Wi-Fi router + modem/ONU | 12 W | yes | 24.8 days |
| Starlink (standard dish) | 60 W (100 start) | yes | 5.0 days |
| TV 50" | 75 W | yes | 4.0 days |
| Sump pump 1/2 HP | 920 W (2150 start) | yes | 7.7 h |
| Well pump 1/2 HP | 880 W (2000 start) | yes | 8.1 h |
| Space heater 1500 W | 1500 W | yes | 6.8 h |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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Connection and wiring
Follow the diagrams in the Generac manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
Open the Generac manual (PDF) →
Error codes and troubleshooting
We found no error-code table in this manual. Its troubleshooting section is the reference.
FAQ
How long will the Generac PWRcell 2 run a refrigerator?
About 170 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the Generac PWRcell 2 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 5200 W output (no separate peak published). That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.