The Sun Xtender PVX-840T is a premium valve-regulated lead acid AGM deep cycle battery engineered specifically for off-grid and grid-tied solar and wind energy storage systems, delivering exceptional cycle life, superior charge acceptance, and non-spillable construction for reliable renewable energy storage in the most demanding applications.

Key Features:

• Pure Lead Calcium Grid Construction with Thicker-Than-Industry-Standard Plates: Engineered with pure lead calcium grids and plates thicker than the industry standard, delivering longer cycle life, increased reliability, and superior power output compared to conventional AGM batteries.
• Proprietary PolyGuard Microporous Polyethylene Separators — Exclusive Dual Layer Protection: Sun Xtender's patented PolyGuard separators shield positive plates against shorting, shock, and vibration — a dual layer insulation protection feature not offered by any other manufacturer in the industry.
• Non-Spillable VRLA-AGM Construction — No Water Monitoring Required: The sealed valve-regulated AGM design eliminates the need to monitor and replenish water levels, delivering truly maintenance-free operation across the full service life of the battery.
• Low Impedance AGM Design for Excellent Charge Acceptance: The low impedance construction allows for superior charge acceptance with no current limit required during controlled voltage charging, maximizing solar energy harvest efficiency.
• High Impact Reinforced Copolymer Polypropylene Case with Thick End Walls: The rugged case material and thick end wall design prevent bulging under pressure, while corrosion-resistant copper alloy M8 threaded insert terminals with silicon bronze bolts and washers ensure long-term connection integrity.

The Sun Xtender PVX-840T represents over three decades of innovation in renewable energy battery design. Since 1987, Sun Xtender — a division of Concorde Battery Corp — has been engineering VRLA-AGM batteries specifically for the demands of solar and wind energy storage, and the PVX-840T is a direct result of that deep industry expertise and continuous refinement.

Designed for off-grid, grid-tied, and uninterruptible power applications, the PVX-840T delivers 84Ah of nominal capacity at the 24-hour rate and up to 96Ah at the 100-hour rate — providing the deep, sustained discharge performance that renewable energy systems demand. Its two rope lifting handles make installation and repositioning practical even at its 57 lb maximum weight.

Shipping Hazmat Exempt, the PVX-840T is one of the most installer-friendly AGM deep cycle batteries available for residential and commercial solar applications. With standard M8 threaded insert terminals, an optional factory-installed SAE automotive post, and a Group 24 industry reference classification, the PVX-840T integrates cleanly into virtually any solar storage system design.

Technical Specifications