The FIRMAN Zero-E Energy Storage System provides clean, reliable, emission-free power for homes, apartments, vehicles, and off-grid living. Delivering 4,000 starting watts and 2,000 running watts, the Zero-E powers appliances, electronics, and essential devices with silent, safe Lithium Iron Phosphate battery technology offering 4,000+ charge cycles. Featuring advanced EPS Emergency Power Supply, it seamlessly switches to battery backup in milliseconds to keep critical devices like refrigerators, sump pumps, modems, and security systems running during outages.
- 2,000 Running / 4,000 Starting Watts – Powers appliances, electronics, and essential devices quietly and emissions-free.
- EPS Automatic Backup – Switches to battery power within milliseconds to prevent unexpected blackouts.
- Lithium Iron Phosphate Battery – Safe operation and 4,000+ charge cycles for long-term reliability.
- Expandable to 11,440Wh – Supports up to 10 slide-on expansion batteries for extended runtime.
- Fast Charging – Recharge up to 80% in just 1 hour with AC input.
- Versatile Output Ports – Includes six 120V outlets, TT-30R RV plug, four USB-A, two 100W USB-C, DC ports & Qi wireless.
- Multi-Source Charging – Recharge via wall, 12V vehicle, or up to 400W solar input for off-grid use.
- Parallel Support – Double your power supply when paired with a second Zero-E system.
Frequently Asked Questions
No. We consider many different factors in reviewing your application and regularly approve customers with less than perfect credit history.
Rent-A-Center does not report your payment history to the credit bureaus. We know life happens so, we allow you to return your products at any time without further obligation.
All you need is some standard information:
- Personal Info: Name, date of birth and contact info
- Income Info: Verifiable source of income
- Residence Info: Contact info for your landlord/mortgage company
- 2-4 References: At least two references should be relatives with separate addresses
At any time, you can contact your store to schedule a return of your product or return the merchandise in person and pause your payments. When you're ready, you can come back, reinstate your agreement to get the same or comparable item, and pick up your payments right where you left off.
In most states, $10 is all you need to get started at Rent-A-Center.* Starting amounts higher in some markets. Customers in NY, HI will also pay a processing fee of $10 ($18 in CA). Contact your store for details.