OLTEANP 1500W Sump Pump Battery Backup System — 12V UPS-Style Inverter with 25A Smart Charger & LCD Remote

The OLTEANP 1500W sump pump battery backup system is a compact UPS-style inverter that keeps residential sump pumps running on a 12V battery during power outages to prevent basement flooding.

When storms, heavy rain, or utility failures threaten a finished basement, a fast, automatic backup for your sump pump reduces water intrusion and costly damage. This 1500W pure sine wave inverter switches instantly from grid power to a deep-cycle 12V battery (battery not included) and supports recharge once utility power returns. It combines a 25A smart charger, multi-layer safety protections, LCD remote monitoring, and multiple AC/USB outlets in a single wall-mountable unit designed for homeowners, landlords, and facilities managers who need dependable emergency water removal.

How does the unit protect my basement during a power outage?

The inverter monitors utility power and automatically transfers the sump pump load to battery power when mains fail, maintaining continuous pump operation. Its pure sine wave output is safe for common residential sump pumps and prevents erratic motor behavior that can occur with modified outputs.

• Automatic transfer to 12V battery backup when grid power drops
• 1500W continuous pure sine wave output for reliable pump performance
• Three AC outlets plus USB and Type-C ports for additional needs
• Compatible with LiFePO4, AGM, GEL, and flooded deep-cycle batteries

What safety and battery care features are built in?

The unit includes a 25A multi-stage charger that optimizes charging and extends battery life by reducing overcharge and sulfation risks. Multiple protections guard against overload, short circuit, overheating, and low-voltage conditions so the system operates safely under storm conditions.

• 25A smart charger with multi-stage charging profile
• Overcharge, overload, short circuit, low voltage, and overheat protection
• Automatic recharge when utility power is restored
• Floating neutral design and dedicated AC hardwire terminal block

How do I install and monitor the backup system?

Installation is straightforward: connect the provided heavy-gauge battery cables to a compatible 12V deep-cycle battery, plug in the primary AC source, and mount the unit on a wall or place it flat. The included wired remote with LCD displays battery voltage, load percentage, and operating mode so you can check status without accessing the unit directly.

• Includes 31.5-inch 16 mm² (≈5 AWG) battery cables for robust connection
• Wired remote with LCD for real-time battery and load monitoring
• Supports wall mounting or flat placement with simple AC/DC hookups
• AC hardwire terminal block labeled L, N, PE for fixed connections

What equipment and support come with the OLTEANP kit?

The package supplies the inverter, battery cables, AC power cord, a wired remote controller, and a user manual so you have the main components needed to get started (battery sold separately). OLTEANP also provides 24 months of product support and 24/7 customer service for installation help and troubleshooting.

• 1 × 1500W 12V UPS inverter and mounting hardware
• 1 pair heavy battery cables, 1 × UPS power cord, 1 × wired remote
• Comprehensive user manual and two-year professional support
• Recommended extra space for ventilation and wiring access

Who is this for: Homeowners with finished basements, rental property owners, and facility managers in flood-prone or storm-prone areas who need an automatic, compact backup power solution for their primary sump pump. Choose this model if you want pure sine wave output, a built-in smart charger, simple installation, remote monitoring, and professional support to reduce the risk of basement water damage during power interruptions.