This listing covers the EG4 All Weather Battery paired with the EG4 12000XP V2 Hybrid Inverter, sold together as a complete off-grid energy storage system (ESS). The DATA provided for this system does not include a chemistry designation, cell-level Ah/Wh rating, BMS amperage limits, cycle life, or dimensional specs — these values are flagged below rather than estimated.
Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
Built for the Field, Verified Against the Spec Sheet
An off-grid ESS lives or dies on the details: how much usable energy it stores, how hard you can pull from it, and whether it survives a cold snap without damage. The system range quoted here spans 14.3 to 85.8 kWh, sized to match a PV array between 24kW and 72kW. Beyond that range statement, the manufacturer data supplied for this page does not break out chemistry, per-unit Ah, BMS discharge/charge limits, cold-weather charging protection, cycle life, or physical dimensions. Rather than guess at those numbers, we're flagging them for verification so you get a system sized correctly the first time — not a return three weeks after install.
Battery Characteristics
- Chemistry: [NEEDS VERIFICATION]
- Group Size / Form Factor: [NEEDS VERIFICATION]
- System energy range: 14.3–85.8 kWh
- Compatible PV array range: 24kW–72kW
- Paired inverter: EG4 12000XP V2 Hybrid Inverter
Wiring & Configuration Limits (Series/Parallel)
The 14.3–85.8 kWh range indicates this system is designed to scale via multiple battery units and/or inverter stacking, but the specific series and parallel expansion limits (maximum units in parallel, maximum stack voltage, maximum inverters in parallel) are not included in the manufacturer data provided. Do not assume a series or parallel configuration beyond what is confirmed in the manufacturer manual referenced in the Resources tab. [NEEDS VERIFICATION]
Not confirmed for this system: maximum battery units per stack, maximum inverters per array, and whether batteries can be mixed with other EG4 models or third-party batteries. Treat all of these as unconfirmed until you check the manufacturer documentation.
Pro-Installer Tip
Series and parallel battery banks are unforgiving of shortcuts. Wiring batteries of different ages or state-of-health into the same bank — even within a single manufacturer's product line — causes cell imbalance across the pack, because the BMS in each unit balances independently and can't compensate for a neighbor that's already degraded. That imbalance shows up months later as premature capacity loss or a BMS lockout during a heavy draw. Before you commission a multi-battery bank, verify state-of-charge and internal resistance on every unit with a shunt-based battery monitor, and confirm all units are the same firmware revision if the manufacturer publishes one. For lithium systems generally, keep working depth of discharge in the 80–100% DoD range only after the manufacturer's cycle-life spec confirms the pack is rated for it — don't assume full-depth cycling is safe without that confirmation. [NEEDS VERIFICATION: confirm DoD rating and cycle life for this specific system before deep-cycling it.]
Key Benefits
- Sized as a complete ESS: battery plus 12000XP V2 hybrid inverter, matched to a stated PV input range rather than sold as separate mismatched components.
- Scalable energy range (14.3–85.8 kWh) lets you size the system to actual home load rather than over- or under-buying.
- Manufacturer describes the battery as built for indoor or outdoor placement ("All-Weather"); specific ingress protection rating and operating temperature range are not confirmed in the data provided. [NEEDS VERIFICATION]
Technical Table
| Spec | Value |
|---|---|
| System energy range | 14.3–85.8 kWh |
| Compatible PV array | 24kW–72kW |
| Inverter model | EG4 12000XP V2 Hybrid Inverter |
| Chemistry | [NEEDS VERIFICATION] |
| Voltage | [NEEDS VERIFICATION] |
| Capacity (Ah) | [NEEDS VERIFICATION] |
| Max Continuous Discharge (A) | [NEEDS VERIFICATION] |
| Max Continuous Charge (A) | [NEEDS VERIFICATION] |
| Peak Discharge | [NEEDS VERIFICATION] |
| Cycle Life | [NEEDS VERIFICATION] |
| Operating Temp Range | [NEEDS VERIFICATION] |
| Low-Temp Charging Protection | [NEEDS VERIFICATION] |
| Dimensions | [NEEDS VERIFICATION] |
| Weight | [NEEDS VERIFICATION] |
| Terminal Type | [NEEDS VERIFICATION] |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
Positive fitment: This ESS is designed to pair the EG4 All Weather Battery with the EG4 12000XP V2 Hybrid Inverter, sized to a 24kW–72kW PV array and a 14.3–85.8 kWh energy range.
Negative fitment: Charger and charge-controller requirements specific to this battery's chemistry are not confirmed in the manufacturer data supplied — do not assume a standard lead-acid charger is acceptable until you verify chemistry. This system is NOT confirmed compatible with inverters other than the EG4 12000XP V2 in this listing. Maximum battery bank size and inverter-stacking limits are NOT confirmed in the data provided; do not exceed any unverified configuration limit. [NEEDS VERIFICATION]
FAQ
What chemistry is the EG4 All Weather Battery?
The manufacturer data supplied for this listing does not specify the battery chemistry. [NEEDS VERIFICATION] — check the Resources tab for the manufacturer's technical documentation before ordering.
What size home can this system power?
The system is rated across a 14.3–85.8 kWh energy range and pairs with a 24kW–72kW PV array, letting you scale the configuration to your load. Exact sizing for your specific home requires a load calculation using your own usage data.
What inverter comes with this system?
The EG4 12000XP V2 Hybrid Inverter is the paired inverter for this ESS.
Can I install this battery outdoors?
The manufacturer describes it as an "All-Weather" battery suited to indoor or outdoor placement. Specific ingress protection rating and operating temperature range are not included in the data provided for this listing. [NEEDS VERIFICATION]
Can I mix this battery with other brands or older EG4 units?
This is not confirmed as compatible with other battery brands or with mixed-age units. Mixing batteries of different ages or manufacturers in the same bank is not recommended without manufacturer confirmation.
Warranty & Support
Warranty terms for this system are not included in the manufacturer data supplied for this page. Refer to the "Resources (System Manuals and Warranty)" Tab above for the manufacturer's warranty documentation before you order. If anything in that documentation doesn't match what's shown here, ask us before you order — we always reply back.
