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Spartan Home Pros is a licensed and insured electrician and a Tesla Certified Installer, putting in Tesla Powerwall and other home battery backup for homeowners across Central New Jersey. Call or text (908) 287-2187. You get one flat price up front, our own crews on the install, and we handle the permit, the inspection and the utility paperwork. When the grid drops, the battery takes over in a split second, with no engine, no fuel to store and no noise.
How a Home Battery Works
A home battery stores electricity, either from the grid or from your solar panels. When the power goes out, your home switches over to the battery on its own, usually so fast the lights do not even blink. When the grid comes back, the battery recharges and waits for the next outage. You can watch it all from an app on your phone.
Battery Backup or Generator: Which Is Right for You?
Both keep your lights on. They do it in different ways, and the right choice depends on your home and how you live.
| Home Battery (Powerwall) | Standby Generator | |
|---|---|---|
| Noise | Silent | Runs like a small engine |
| Fuel | None. Charges from the grid or solar | Natural gas or propane |
| Fumes | None | Exhaust, must sit away from windows |
| Switch-over | Nearly instant | A few seconds |
| Upkeep | Very little | Yearly service, oil changes, test runs |
| Long outages | Lasts hours to days, longer with solar | Runs as long as fuel lasts |
| Where it goes | On a wall, inside the garage or outside | Outside on a pad |
A battery is a great fit if you want quiet, fuel-free backup, you have or plan to add solar, or your town or HOA makes generators hard to place.
A generator is a great fit if you lose power for many days at a time, you need to run large equipment for long stretches, or you want to back up a big home on a tighter budget.
Not sure? We will look at your home and give you an honest answer. We install both, so we have no reason to push one over the other. See our generator installation services.
What Can a Battery Keep Running?
A single Powerwall stores enough energy to keep the basics going through a typical outage: lights, refrigerator, internet, phone chargers, the furnace fan and a sump pump. Add more batteries and you can back up more of the house, including central air on many homes. We help you choose what to back up so you get the most from every battery.
Is My Home Ready for a Battery?
Some homes need a little work first. We check your electrical panel and wiring, and if your panel is old or full, we can upgrade it during the same project. We also handle the town permit, the inspection and the paperwork with your utility so the system is approved and running.
How It Works
- Home visit. We look at your panel, your space and what you want to keep running.
- Flat price. You see the full cost before any work begins. No hourly surprises.
- Permits and utility approval. We file everything for you.
- Installation and setup. We install the battery, connect the app and show you how it works.
“The guys did an excellent job installing my Tesla wall charger. I would recommend them to anyone who needs one. …”
Why Homeowners Choose Spartan Home Pros
- Licensed and insured New Jersey electrical service company
- Upfront flat pricing, quoted before we start
- Lifetime Craftsmanship Guarantee on the indoor wiring we install; the Powerwall and any outdoor equipment are covered by the manufacturer’s warranty
- Hundreds of five-star Google reviews
- Real people answer the phone, 24 hours a day
What Our Customers Say
Verified Google reviews from homeowners and businesses across Central New Jersey.
Brands We Install and Service
Electrical










Heating and Cooling





Smart Home and Thermostats


Tesla Certified Installer · Authorized Generac Installer
Battery Backup Questions
Do I need solar panels to get a Powerwall?
No. A Powerwall can charge from the grid and still back up your home during an outage. Solar lets it recharge during long outages and can lower your electric bill.
How long will a battery keep my house running?
It depends on how much you run and how many batteries you have. Keeping to the essentials makes the power last much longer. We size the system around the outages you actually see.
Can it go inside my garage?
Yes, in most cases. Powerwall can mount on a wall inside the garage or outside the house.
Is a battery safe?
Yes. Home batteries are built and tested for home use, there is no fuel and no exhaust, and we install them to code and get them inspected.
More Services From Spartan Home Pros
Electrical
Heating and Cooling
Book Your Battery Backup Visit
Call or text our office any time. Call 908-287-2187 or text 908-287-2187. Ask for a flat price on battery backup for your home.
