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Read our privacy policyThe iON 35ACi+ is an integrated sump pump and battery backup system designed to provide reliable residential water-removal protection during normal operation and power outages. Its 1/3 HP stainless steel and cast iron BA33i pump delivers up to 53 GPM at 10 feet of total dynamic head.
During normal conditions, the system operates from standard 120V AC utility power. When utility power is unavailable, the 800 VA inverter automatically converts power from a connected 12-volt AGM battery into auxiliary 120V AC power, allowing the same sump pump to continue operating during an outage.
The 35ACi+ combines everyday sump pumping with automatic battery backup in one system. During normal operation, the BA33i pump runs from standard household AC power and can serve as a primary sump pump.
The system can also be installed as a dedicated secondary pump alongside a separate primary pump, providing additional protection against pump failure or power loss.
When utility power is lost, the 800 VA inverter converts stored 12V battery power into 120V AC power for the sump pump. This allows the BA33i to continue operating using auxiliary AC power during an outage.
During normal utility operation, the system bypasses battery power and runs directly from household AC power. When utility power is restored, the inverter/charger automatically recharges the connected battery.
The system requires one 12-volt deep-cycle AGM battery, which is sold separately.
The iON+ Switch uses solid-state level sensing without moving parts or contact points for automatic pump control. Integrated multi-color LED indicators provide system status information, while the audible alarm alerts users when a high-water condition is detected.
The system also includes dry contacts with an RJ11 connection for integration with a compatible external monitoring device.
The iON 35ACi+ includes the BA33i 1/3 HP stainless steel and cast iron sump pump, iON+ digital level control and high-water alarm, 800 VA power inverter/charger, and non-corrosive battery enclosure.
The required 12-volt deep-cycle AGM battery is not included and must be purchased separately.
The 35ACi+ is rated for up to 53 GPM at 10 feet of total dynamic head. Actual pumping performance will vary based on total system head, discharge piping, fittings, and installation conditions.
An 18-inch diameter by 24-inch deep minimum basin is recommended. The system requires one 12-volt deep-cycle AGM battery for backup operation. Verify basin dimensions, discharge piping, electrical supply, battery specifications, pump configuration, control settings, and applicable local codes before installation.
The iON 35ACi+ includes a 3-year warranty. For proper installation and dependable long-term performance, verify the required basin dimensions, discharge piping, electrical supply, battery type and capacity, pump configuration, control settings, and applicable local codes before installation. Refer to the manufacturer's operation manual and installation documentation for complete installation, operation, maintenance, and safety requirements.
The iON 35ACi+ is a 1/3 HP battery backup AC sump pump system designed to provide dependable water removal during everyday operation and continued pumping capability during power outages. Rated at 53 GPM at 10 feet of head, the system uses household AC power during normal operation and automatically switches to battery-powered AC backup when utility power is unavailable.
Built with a durable stainless steel housing and cast iron base, the 35ACi+ is designed for reliable residential sump applications. The system includes a high-efficiency pump, automatic power inverter and battery charger, battery enclosure, and iON+ Digital Level Control with a built-in high water alarm. One 12V deep-cycle AGM battery is required and sold separately.

