Franklin Batteries
Brentwood, CA
Free, Same-Day Estimates
Warranties Available
We Focus on Energy Savings
Franklin Batteries
United Solar Electric

Reliable.
Long-Lasting.
Consistent.
Franklin Home Power Solution ("FHP")
Franklin Home Power goes well beyond the demand for safe, reliable back-up to optimize daily household energy management, bringing you whole-home energy independence. The core FHP components are the aGate intelligent controller, the aPower batteries, and the FranklinWH App.
The aGate
- Is an intelligent management device integrating solar, grid, generator and aPower batteries to support home loads.
Optional Accessories for aGate
- Smart Circuits Module: Manual and scheduled control for unique electric circuits, managed via the FranklinWH App.
- Generator Module: Standby generator integration into power supply, alongside aPower, solar systems, and the grid.
The aPower
- An LFP battery with a built-in advanced inverter.
- FranklinWH App provides real-time monitoring and control of home energy sources and consumption.


10 kW
Continuous Output
15-Yr. Warranty
No Cycle Limitations
15 KwH
Storage Capacity
Up Your Storage Game.
A single aPower 2 can power your entire home day and night or during outages.
The aPower 2 is the cutting-edge second-generation home energy battery within the FranklinWH energy ecosystem, storing energy from solar, grid, generator, and EV. Boasting a massive 15 kWh capacity and a continuous output of 10 kW, aPower 2 is built to handle the toughest energy demands. It can effectively power A/C, heaters, and other high- power home devices, helping to shave off energy costs and increase home power resilience.

aGate Performance.
As an AC-coupled system, the FranklinWH solution stands apart as an open energy ecosystem, capable of integrating various energy sources such as solar, grid, generator, and EV together with battery. This enables uninterrupted energy flow, optimizing energy supply and use, while achieving unrivaled energy freedom.
Full System Monitoring
These monitoring programs empower you with the information
needed to maintain battery health, and maximize system up time.
Franklin battery systems incorporate sophisticated monitoring programs to ensure optimal performance and reliability.These programs, such as those utilizing CELLGUARD™ technology, provide continuous analysis of key battery metrics like voltage, temperature, and conductance.This enables proactive maintenance, helping to prevent failures in critical applications.Furthermore, software solutions like CELLTRAQ™ and the FranklinWH App offer centralized data management, real-time monitoring, and detailed reporting, empowering users to effectively manage and optimize their battery systems.

Comprehensive Reporting
- Robust Monitoring provides insights into energy systems performance, savings, and efficiency.
Real Time Monitoring
- Estimate your savings in real time
The Franklin energy system features 3 power modes
- Time-of-use
- Self-consumption
- Emergency backup
Measured Results
- Statistical analysis of energy efficiency to fine-tune your energy strategy
- Personalized reports on energy statistics to identify household patterns
Hassle-Free
- Remote monitoring and user-friendly app limits O&M.
Energy Storage You Can Trust.
Whether powering a home, a small business, or even a farm, the system can dynamically adjust to align with your evolving energy needs without overhauling your system.


Click to Compare Battery Systems
Explore alternative energy storage solutions to help you get the most out of your solar investment.
FranklinWH offers a comprehensive home energy storage system, centered around its aPower battery and aGate smart energy management device, designed for reliable whole-home backup and optimized energy usage.
Experience greater energy independence and reduce your reliance on the grid with SolarEdge's intelligent battery technology.
Tesla Powerwall 3 provides whole-home backup with seamless solar integration and intelligent energy management. Its scalable design supports energy independence and reliable backup for modern homes.
Upgrade Your Solar System With Franklin Batteries
Franklin Batteries provide reliable energy storage that maximizes your solar investment and keeps your home powered during outages. At United Solar Electric, we'll integrate advanced battery technology into your solar system to deliver independence from the grid and consistent power when you need it most. Our team designs each installation to match your property's unique energy demands.
- Seamless integration with existing solar panels
- Backup power during utility outages
- Reduced reliance on grid electricity
- Energy independence for your home
- Smart energy management capabilities
Reach out to us to learn how Franklin Batteries can improve your energy storage solution.
Energy Storage That Protects Your Investment
Solar panels generate power during daylight hours, but without storage, excess energy goes unused. Franklin Batteries capture that surplus and store it for evening use or emergency situations. You'll gain control over your energy consumption while protecting against rising utility costs and power interruptions.
- Store excess solar energy for later use
- Maintain power during blackouts and emergencies
- Lower monthly electricity bills
- Increase property value
- Support sustainable energy practices
Battery storage ensures you're not dependent on the grid while maximizing the return on your solar investment. With intelligent monitoring, you'll see exactly how your system performs.
Why Choose United Solar Electric
We bring over 16 years of experience to every Franklin Battery installation, backed by our licensed, bonded, and insured team (CSLB C10 License #1049650). Our locally and family-owned company focuses on custom solar designs tailored to each property, ensuring your battery system aligns perfectly with your energy goals.
- Free, same-day estimates
- Military and first responder discounts
- Quality equipment with industry-leading warranties
- Focus on long-term financial benefits and savings
- Customer satisfaction built on integrity and teamwork
We're committed to delivering solutions that work for your household while providing ongoing support. You'll receive personalized service from a team that understands your community.
Contact Us
Ready to add Franklin Batteries to your solar system? Our experienced professionals will evaluate your current setup and recommend the best storage solution for your home in Brentwood, CA. We'll handle everything from design through installation, ensuring seamless operation and reliable backup power. You'll enjoy peace of mind knowing your energy needs are covered.
Contact us today to schedule your free estimate and discover how battery storage can benefit your property.
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