OLTEANP 1500W Sump Pump Battery Backup System — 12V Pure Sine Wave Inverter with 25A Fast Charger and Auto Transfer, LCD Remote

OLTEANP's 1500W sump pump battery backup system keeps your sump pump running during blackouts by automatically switching to a 12V deep-cycle battery and offering pure sine wave power and fast 25A recharging. Power interruptions during storms are a primary cause of basement flooding; this unit is built to bridge the gap until grid power returns. Designed as a dedicated emergency companion for residential sump pumps, the OLTEANP system combines a 1500W pure sine wave inverter, a 25A multi-stage charger, an auto transfer switch and LCD remote monitoring to deliver continuous water removal and safe power to sensitive electronics. Battery is required but not included, and the system accepts common deep-cycle chemistries like LiFePO4, AGM, GEL and flooded cells.

How does this system keep my sump pump running during outages?

The built-in automatic transfer switch senses utility failure and immediately switches load to the connected 12V battery bank so the sump pump remains operational. Pure sine wave output protects pump motors and electronic controls while minimizing noise and heat.

• Instant transfer to battery power when grid fails
• 1500W continuous pure sine wave output for common residential sump pumps
• Three AC outlets plus USB and Type-C ports for small devices
• Compatible with standard 12V deep-cycle batteries (battery not included)

What battery and charging features should I expect?

The OLTEANP includes a 25A smart multi-stage charger that conditions and refills compatible batteries after utility power returns. The charger includes multi-layer protections to reduce overcharging and prolong battery life.

• High-efficiency 25A multi-stage charging for faster, safer recharging
• Compatible with LiFePO4, AGM, GEL and flooded batteries
• Protections for overcharge, overload, short circuit, low voltage and overheating
• Automatic recharge once grid power is restored

How do I monitor and install the OLTEANP backup system?

Monitoring is handled through a supplied LCD remote that shows battery voltage, load level and operating mode for easy oversight. Installation is straightforward: mount on a wall or place flat, connect AC input and battery cables, then plug in the sump pump and essential devices.

• Remote LCD provides real-time status without opening the unit
• Simple AC and DC connections, wall-mount or flat placement options
• Includes battery cables, UPS plug and user manual for quick setup
• 12-month warranty and 24/7 customer support for troubleshooting

What does the pure sine wave inverter protect and power?

Pure sine wave output delivers clean, stable electricity similar to utility power, protecting pump motors and sensitive electronics from spikes or harmonic distortion. The inverter supports continuous sump pump loads and provides auxiliary charging points for devices during outages.

• Clean power for pumps and electronics reduces wear and noise
• 1500W continuous output, suitable for many residential sump pumps
• Auxiliary AC outlets plus USB-A and USB-C ports for phones and small appliances
• Automatic switching back to grid power when available

Who is this for? This backup system is aimed at homeowners, landlords and property managers who need reliable basement flood protection during storms and blackouts. It's ideal for finished basements, flood-prone properties, or anyone who wants automatic, uninterrupted sump pump operation without complex battery bank engineering. If you already have or plan to buy a compatible 12V deep-cycle battery and want a compact, monitored solution to protect property from water damage, the OLTEANP 1500W backup system is built for that role.

FAQ

Q: Does the unit include a battery?

A: No — the OLTEANP backup system requires a 12V deep-cycle battery, which is sold separately.

Q: What battery types are compatible?

A: Compatible with LiFePO4, AGM, GEL and flooded 12V deep-cycle batteries for flexible options.