The EG4 WallMount 280Ah All-Weather battery is a scalable, low-maintenance home battery backup designed for outdoor installation. This post covers the safety features listed on its product page.
The battery has features that improve performance and power consistency. It also has features that improve installation and operation safety, which are listed below.
The EG4 solar battery lists an IP65 enclosure, integrated self-heating, an emergency stop, protection against voltage, current, and temperature risks, and dual fire arrestors. See the EG4 280Ah All-Weather Battery range for more information.
IP65 Protection for Outdoor Installations
The EG4 all-weather battery has an IP65 rating, which protects it from moisture and particles. The first digit, 6, means full protection against dust. The second digit, 5, means it is protected against water jets from any direction. In practical terms, you can spray it with a hose without water getting in.
What IP65 Means
| Digit | Meaning |
|---|---|
| First digit: 6 | Dust-tight. No dust gets in. |
| Second digit: 5 | Protected against water jets from any direction. |
The battery’s cables also have weather-tight quick connections.
Prefer a different model? BigBattery’s EG4 314Ah All-Weather battery lists an IP67 enclosure, and the EG4 314Ah Indoor battery suits protected indoor spaces.
Self-Heating Design for Lithium Batteries in Cold Weather
Lithium batteries and cold weather do not mix unless the battery can warm itself. A cold weather lithium battery needs protection when temperatures fall, and lithium batteries for cold weather often include a heater.
Lithium batteries can be damaged when the battery is charged in low temperatures. This battery has a self-heating feature that raises its internal temperature in cold conditions, which improves output consistency and protects the cells.
The 280Ah page lists charging from 32°F to 122°F and discharging from -4°F to 131°F. Its internal heater cuts on at or below 32°F and off at or above 41°F. For more on cold-weather use, see What to Expect When Using Lithium Batteries in Cold Weather.
E-Stop with Rapid Shutdown Capability
This EG4 all-weather battery has an emergency stop (E-stop) for rapid shutdown when needed.
Safety matters more as systems grow. When multiple batteries are installed, an emergency stop can help in a multi-battery system.
Battery Management System Protection
The battery management system protects against voltage, current, and temperature risks. The 280Ah model lists more than 8,000 expected cycles at 80% depth of discharge and a 10-year manufacturer warranty.
Dual Onboard Fire Arrestors
The 280Ah model lists dual fire arrestors alongside its BMS protections. Fire arrestors add a further layer of protection if a cell overheats.
EG4 280Ah All-Weather Battery at a Glance
| Spec | As listed on the product page |
|---|---|
| Nominal voltage and energy | 51.2V, 280Ah, 14.3 kWh |
| Enclosure | IP65 |
| Cold weather | Integrated self-heating |
| Charging range | 32°F to 122°F |
| Discharging range | -4°F to 131°F |
| Safety | Emergency stop, dual fire arrestors, BMS protection |
| Communication | RS485, CAN bus |
| Cycle life | 8,000+ cycles at 80% depth of discharge |
| Warranty | 10 years |
Get Help Building Your Home Battery Backup System
Choosing batteries and equipment for a home battery backup can feel overwhelming. BigBattery’s Texas-based experts can make specific recommendations for your plan. See the EG4 280Ah All-Weather battery, run your loads through the Solar Battery Sizing Calculator, or call (818) 280-3091.
Frequently Asked Questions
What does IP65 mean on a battery?
The 6 means it is dust-tight. The 5 means it is protected against water jets from any direction, such as rain or a hose.
Can the EG4 All-Weather battery be installed outdoors?
Yes. It is built for outdoor installation with an IP65 enclosure. The 280Ah page also lists weather-resistant construction.
Does the EG4 All-Weather battery work in cold weather?
It has integrated self-heating. The 280Ah page lists charging from 32°F to 122°F and discharging from -4°F to 131°F.
Does the EG4 All-Weather battery have an emergency stop?
Yes. The product page lists an emergency stop (E-stop) for rapid shutdown when needed.
What fire protection does it have?
The 280Ah model lists dual fire arrestors, along with BMS protection against voltage, current, and temperature risks.
How long is the warranty and expected cycle life?
The 280Ah model lists a 10-year manufacturer warranty and 8,000+ cycles at 80% depth of discharge.
