15KWH 16KWH Power Wall LiFePO4 Batteries
Dual-Capacity Options for Tailored Home Energy Needs
Offered in 280Ah and 314Ah variants, the battery delivers scalable energy storage to match diverse residential demands:
280Ah (14.336kWh): Powers a typical household's critical loads (refrigeration, lighting, Wi-Fi, small appliances) for 1–2 days, or supports partial solar self-consumption (offsetting 50–60% of daily grid use) for homes with 3–5kW solar arrays.
314Ah (16.172kWh): Extends backup runtime to 2–3 days for critical loads, or enables full solar self-consumption (offsetting 70–80% of daily grid use) for larger homes with 5–7kW solar arrays.Both options operate at 51.2V nominal voltage (58.4V max charge voltage), reducing current flow for the same power output-minimizing energy loss via cables (by up to 25% vs. 12V/24V batteries) and compatible with 3–8kW residential inverters (grid-tie or off-grid).
LiFePO4 Chemistry for Long Lifespan & Safety
Built with premium LiFePO4 cells, the battery outperforms traditional lead-acid or other lithium-ion alternatives in durability and safety:
Extended Cycle Life: 3000–6000 deep cycles at 80% depth of discharge (DoD), retaining ≥80% capacity after 10–15 years-5–10x longer than lead-acid batteries, eliminating frequent replacement costs.
Inherent Safety: Non-flammable, non-explosive chemistry (unlike Li-ion) with a wide operating temperature range (-20°C to 60°C), avoiding thermal runaway risks even in overcharge, short-circuit, or high-temperature scenarios.
High Charge/Discharge Efficiency: 95–98% round-trip efficiency (vs. 70–80% for lead-acid), meaning more solar energy is stored and used rather than wasted as heat-maximizing the value of every kWh captured.
15kwh / 16kwh Battery Datasheet
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Nominal Voltage
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51.2V
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Nominal Capacity
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280Ah/314AH
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Nominal Energy
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14.336KWH/16KWH
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Battery Type
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liFePO4(LFP)
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Cycle life
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≥6000 cycles @80% DOD
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Charge voltage
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56
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Operation Voltage Range
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43.2~58.4V
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Max.charge current
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140A ( Optional 250A )/160A ( Optional 250A )
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Max.discharge current
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140A ( Optional 250A )/160A ( Optional 250A )
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Discharge cut-off voltage
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43.2
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Charge cut-off voltage
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58.4
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IP class
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IP20
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Pack dimension L*W*H
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500*233*880mm
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Package dimension L*W*H
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943*563*396mm
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Net weight
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117KG/125KG
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Gross weight
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130KG/147KG
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Protocol (Optional)
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Canbus / RS485 / RS232
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Monitoring
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Bluetooth / WLAN Optional
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Pack Certificates
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UN38.3, MSDS
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Cell Certificates
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UN38.3, MSDS, IEC62619, CE, UL1973
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| 10 Years Warranty, More than 20 Years Lifetime |