13.5kWh LFP Home Battery
Battery
13.5 kWh LFP battery (wall-mount) 10-year warranty.
Normalized price
$704 per kWh
$9,500 listed price
Methodology: lowest in-stock merchant price · normalized to nameplate
long-cycle, hot-climate installs (LFP thermal stability)
The data
Specifications
Capacity
| Capacity (nominal) | 13.5 kWh |
|---|---|
| Chemistry | LFP |
Electrical
| Max continuous discharge | 11.5 kW |
|---|---|
| Max continuous charge | 5 kW |
Lifecycle & warranty
| Warranty | 10 years |
|---|
Installation & comms
| Stackable | Yes |
|---|---|
| Installation type | wall mount |
| Communications | Wi-Fi, Ethernet, RS-485 |
| UL listings | UL1741, UL9540, UL9540A, UL3741, UL1741PCS, UL1741SA, UL1741SB, UL1741Multimode, UL1973, UL1699B, UL1998 |
Physical
| Dimensions | 1105 × 609 × 193 mm |
|---|---|
| Weight | 124 kg |
| Enclosure rating | IP67 (Battery & Power Electronics), IP55 (Wiring Compartment) |
| Operating temp. | -20°C to 50°C |
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Editorial
Best for, watch out for
Best for
- long-cycle, hot-climate installs (LFP thermal stability)
- whole-home backup with margin for AC + appliances
- garage or outdoor wall installation
- long-hold installs (10-year warranty)
The market
Price history
Price history
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The shortlist
Three alternatives we'd consider
Common questions
What people ask about the 13.5kWh LFP Home Battery
LFP vs NMC — does the chemistry actually matter?
Tesla 13.5kWh LFP Home Battery is LFP (lithium-iron-phosphate) — the chemistry now standard in residential storage. LFP runs cooler, doesn't have the runaway-fire risk profile of NMC, and tolerates 100% depth-of-discharge without warranty hits. It's slightly heavier and slightly less energy-dense than NMC, but for stationary residential use those are non-issues. LFP is the right choice — it's what we'd recommend either way.
What's the real usable capacity vs the spec sheet number?
Tesla 13.5kWh LFP Home Battery is rated 13.5kWh and (per the manufacturer) full DoD is in-warranty. In practice we'd still plan to use ~95% to leave reserve for the BMS to balance cells and to handle the small efficiency loss at the very bottom of the discharge curve.
How realistic are the cycle-life claims?
LFP cells typically rate at 6,000–10,000 cycles to 80% DoD, which is 19+ years at one cycle per day. Real residential use rarely fully cycles every day, so calendar aging (cells degrading over time regardless of use) is usually the practical limiter, not cycle count.
Can I parallel multiple 13.5kWh LFP Home Battery units?
Yes — Tesla 13.5kWh LFP Home Battery is stackable. We don't have the maximum stack capacity confirmed. Confirm with the manufacturer or installer how many units can parallel into a single bank, and check that your inverter supports the resulting battery voltage and capacity.
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