The Renogy Deep Cycle AGM Battery features an integrated internal structure and sealed design, sparing you from intricate internal troubleshooting. Therefore, the battery is ideal for solar system beginners or anyone who prefers a product with simple operations. The upgraded electrolyte formula ensures excellent discharge performance from -4 to 140°F/ -20 to 60°C, allowing the battery to function seamlessly in freezing conditions without requiring extra temperature compensation. You can connect up to 4 batteries in parallel. You can also connect multiple batteries in series. It's advisable to connect batteries of the same type (AGM), capacity (Ah), and voltage (V) from the same brand. We also recommend using a battery balancer to prolong the service life when connecting multiple batteries in series and/or parallel. Before installing the battery, please note that you need to leave 1.97-3.94 in (5-10 cm) for the top of the battery; the side with busbars needs to be left at least 7.87 in (20 cm).

• Maintenance Free: Manufactured with thick absorbent glass mat (AGM) separators and advanced valve regulated technology, Renogy deep cycle AGM batteries save you from acid leakage and frequent maintenance.
• Excellent Discharge Performance: Proprietary quinary alloy plates and specially treated plate grids enable low internal resistance and high discharge currents of up to 10 times the battery rated capacity.
• Long Shelf Life: Made of high purity materials, Renogy deep cycle AGM batteries reduce the monthly self-discharge rate below 3% at 77℉ (25℃), which is 5 times lower than their flooded counterparts.
• Wide Operation Temperature Range: Improved electrolyte formula ensures stable battery capacity and outstanding discharge performance at low temperatures below 32℉ (0℃).
• Note: We highly recommend installing the battery upright. It is allowed to install the battery on its side only if there are special reasons for doing so. Do not install the battery upside down.
• Maintenance Free: Manufactured with thick absorbent glass mat (AGM) separators and advanced valve regulated technology, Renogy deep cycle AGM batteries save you from acid leakage and frequent maintenance.
• Excellent Discharge Performance: Proprietary quinary alloy plates and specially treated plate grids enable low internal resistance and high discharge currents of up to 10 times the battery rated capacity.
• Long Shelf Life: Made of high purity materials, Renogy deep cycle AGM batteries reduce the monthly self-discharge rate below 3% at 77℉ (25℃), which is 5 times lower than their flooded counterparts.
• Wide Operation Temperature Range: Improved electrolyte formula ensures stable battery capacity and outstanding discharge performance at low temperatures below 32℉ (0℃).
• Note: We highly recommend installing the battery upright. It is allowed to install the battery on its side only if there are special reasons for doing so. Do not install the battery upside down.