Batteries comparison
EG4 14.34kWh LFP Wall Mount Battery vs Tesla 13.5kWh LFP Home Battery
Spec-by-spec comparison of the EG4 14.34kWh LFP Wall Mount Battery and Tesla 13.5kWh LFP Home Battery, with editorial commentary on which fits which use case.
| EG4 14.34kWh LFP Wall Mount Battery Battery | Tesla 13.5kWh LFP Home Battery Battery | |
|---|---|---|
| Price (MSRP) | $4,299 | $9,500 |
| Status | Active | Active |
| Capacity (nominal) | 14.34 kWh | 13.5 kWh |
| Capacity (usable) | 11.47 kWh | - |
| Chemistry | LFP | LFP |
| Nominal voltage | 51.2 V | - |
| Cycle life (80% DoD) | 8,000 cycles | - |
| Warranty | 10 years | 10 years |
| Warranty throughput | 82.6 MWh | - |
| Stackable | Yes | Yes |
| Installation type | wall mount | wall mount |
| Communications | RS-485 | Wi-Fi, Ethernet, RS-485 |
| BMS | EG4 | - |
| UL listings | UL1973, UL9540A | UL1741, UL9540, UL9540A, UL3741, UL1741PCS, UL1741SA, UL1741SB, UL1741Multimode, UL1973, UL1699B, UL1998 |
| Dimensions | 916 × 566 × 232 mm | 1105 × 609 × 193 mm |
| Weight | 140 kg | 124 kg |
| Enclosure rating | IP65 | IP67 (Battery & Power Electronics), IP55 (Wiring Compartment) |
| Operating temp. | -20°C to 55°C | -20°C to 50°C |
| Max continuous discharge | - | 11.5 kW |
| Max continuous charge | - | 5 kW |
| Buy | signature solar → | current connected → |
Where each one wins
EG4 PowerPro WallMount wins on capacity (14.34 kWh vs 13.5 kWh). More nominal capacity means longer outage coverage and more headroom for daily TOU arbitrage. Single-cabinet vs. needing-to-stack matters for install footprint.
Tesla Powerwall 3 wins on price ($4,299 vs $9,500). 121% price gap. Listings change weekly; verify on the product detail page before you order.
The right pick depends on which dimensions matter most to you. The spec table above lays out the full envelope; the chat panel below answers "which one for {use case}" if you want a directed recommendation.
EG4
14.34kWh LFP Wall Mount Battery
$4,299
Best for
- ✓ long-cycle, hot-climate installs (LFP thermal stability)
- ✓ whole-home backup with margin for AC + appliances
- ✓ garage or outdoor wall installation
Tesla
13.5kWh LFP Home Battery
$9,500
Best for
- ✓ long-cycle, hot-climate installs (LFP thermal stability)
- ✓ whole-home backup with margin for AC + appliances
- ✓ garage or outdoor wall installation
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