Special Offers
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Vendor: BigBattery
BigBattery NEXUS + EG4 12000XP V2 Off-Grid Kit | 30–45 kWh | 48V LiFePO4
The whole-home configuration of the NEXUS line: two or three BigBattery NEXUS 48V LiFePO4 batteries — 280Ah and 14.3 kWh usable each, per BigBattery — with the EG4 12000XP V2 off-grid inverter: 12,000W of continuous split-phase...Regular price From $8,085.00Regular price From $8,085.00 -
Vendor: BigBattery
BigBattery NEXUS + EG4 6000XP Off-Grid Kit | 30–45 kWh | 48V LiFePO4
This is the multi-battery configuration of the NEXUS + EG4 6000XP system: two or three BigBattery NEXUS 48V LiFePO4 batteries — 280Ah and 14.3 kWh usable each, per BigBattery — with the EG4 6000XP all-in-one off-grid...Regular price From $7,689.99Regular price From $7,689.99 -
Vendor: BigBattery
BigBattery NEXUS + APEX 10K Off-Grid Kit | 30–45 kWh | 48V LiFePO4
This is the full-output configuration of the NEXUS + APEX line: two or three BigBattery NEXUS 48V LiFePO4 batteries — 280Ah and 14.3 kWh usable each, per BigBattery — with the APEX 10K all-in-one inverter: 10,000W...Regular price From $7,870.00Regular price From $7,870.00 -
Vendor: BigBattery
BigBattery NEXUS + APEX 6.5K Off-Grid Kit | 30–45 kWh | 48V LiFePO4
This is the multi-battery configuration of the NEXUS + APEX 6.5K system: two or three BigBattery NEXUS 48V LiFePO4 batteries — 280Ah and 14.3 kWh usable each, per BigBattery — with the APEX 6.5K all-in-one inverter:...Regular price From $7,680.00Regular price From $7,680.00 -
Vendor: BigBattery
BigBattery ETHOS + EG4 FlexBOSS21 Kit | 10.24–30.72 kWh | Split-Phase Home ESS
This kit pairs BigBattery's stackable ETHOS 48V LiFePO4 battery platform with the EG4 FlexBOSS21 hybrid inverter. Per EG4, the FlexBOSS21 offers 21 kW of usable PV input across three MPPTs, delivers 12 kW of AC power...Regular price From $6,460.00Regular price From $6,460.00 -
Vendor: BigBattery
BigBattery ETHOS + EG4 FlexBOSS18 Kit | 10.24–30.72 kWh | Split-Phase Home ESS
This kit pairs BigBattery's stackable ETHOS 48V LiFePO4 battery platform with the EG4 FlexBOSS18 hybrid inverter. Per EG4, the FlexBOSS18 delivers 13 kW of continuous output (10 kW on battery alone) with up to 18 kW...Regular price From $6,055.00Regular price From $6,055.00
BigBattery ETHOS and NEXUS LiFePO4 energy storage — stackable home ESS and high-capacity off-grid kits paired with EG4 and APEX inverters.