Sun Xtender®

Deep Cycle AGM Batteries

Sun Xtender® solar batteries

Sun Xtender® solar batteries, manufactured by Concorde Battery Corporation here in the United States, are fully contained, maintenance-free, lead-acid batteries designed and engineered specifically for renewable energy applications. The absorbent glass mat (AGM) line of batteries is a deep cycle option that has a much lower cost per capacity, making it a great option for backup systems that are only expected to provide power when the grid fails.

Advantages of Sun Xtender®

  • Utilizes pure lead-calcium grids for increased reliability and power.
  • Proprietary PolyGuard® protection to prevent shorting from shock and vibration.
  • 12-month warranty (expected backup service life 15+ years).
  • 2 Volt, 6 Volt and 12 Volt configurations are available.
  • Copper alloy corrosion free connections allow for maximum conductivity.
  • Shockproof high impact reinforced case restrains from bulging.
  • Includes Pressure Relief Safety Valve to reduce excess pressure that builds up over time.
  • Sealed, maintenance-free design means no spilling or spewing.
Image of Sun Xtender PVX-890T_L Solar Battery

Backup Power for your project 

Start with a Free Estimate

We offer Sun Xtender® batteries as they are safe, high-performance, and well-understood through our extensive experience with them. Discover the advantages these premium solar batteries bring to your project by starting with a free energy storage estimate. 

Sun Xtender®

Exceptional Battery Design

Concorde Battery Corporation has been manufacturing Sun Xtender® deep cycle AGM batteries for the solar and photovoltaic industry since 1987 and holds each battery line to the rigorous standards of the aerospace industry. It is their commitment to premium quality and to meeting customer needs that sets Concorde apart as a battery manufacturer.

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Sun Xtender Solar Battery

Built for a Variety of Applications

Back up YOur Solar Power System

Whether your project is grid-tied, off-grid, or you’re simply looking for an energy storage solution for backup power, Sun Xtender® deep cycle AGM batteries are built to store clean, renewable energy as safely and reliably as possible. Sun Xtender® batteries are perfect for homes, businesses, construction sites, remote applications, and really anywhere that could benefit from low-maintenance, deep cycle energy storage. 

Sun Xtender Renewable Energy Battery

Capacity Options

Sun Xtender® batteries come in a wide range of voltages, sizes, and capacities to meet the needs of all kinds of renewable energy applications. Not sure what configuration is right for your project? Contact one of our specialists for help with sizing your backup system.

7 kWh 30kWh
15kWh 45kWh
20KWh Custom & Unlimited capacity


Different Sun Xtender Solar Batteries