Absolutely — in fact, that’s exactly how it’s designed to work.

PUMP PARTNER is built for 24/7 standby mode. You can safely leave it plugged into your wall outlet and connected to your sump pump at all times — even when you’re away from home for days or weeks.

Its built-in smart charger manages the battery health automatically. There’s no risk of overcharging, and the unit will maintain optimal readiness without unnecessary wear.

Leaving it plugged in ensures that during a sudden power outage, PUMP PARTNER will instantly activate and deliver full backup power with 100% battery charge, giving you peace of mind — whether you’re sleeping or on vacation.

Unlike some portable generators, which aren't meant to stay connected long-term, PUMP PARTNER is specifically engineered for continuous home backup use.

We do not recommend connecting two primary sump pumps to a single PUMP PARTNER unit.

PUMP PARTNER is designed in accordance with NEC (National Electrical Code) guidance for residential basement sump pump circuits. Under standard practice, one branch circuit should supply only one sump pump.

If your basement uses a dual-pump system, whether or not a backup power system is installed, the safe and code-compliant options are:

• Each pump is supplied by a separate dedicated circuit, or
  
• The pumps are managed by a load-alternating (duty-cycling) relay, so only one pump runs at a time
  

Connecting two primary pumps to a single circuit — or to a single backup power source — can lead to overcurrent, breaker trips, overheating, or other electrical safety risks, especially during pump startup.

For safety, reliability, and code compliance, one pump per circuit is always the recommended approach.

Yes, the Pump Partner is equipped with a digital display that shows the operating power of your sump pump and the remaining power of the backup system. This makes it easy to monitor the system’s performance and estimate how much longer the backup power will last. Additionally, the smart chips inside the Pump Partner indicate any fault status through a fault code, so you can quickly identify and address any issues.

Yes, this is completely normal. When your PUMP PARTNER is left on and not connected to grid power (AC), it enters a 24/7 standby mode to monitor for any need to power your sump pump. This advanced inverter system consumes a small amount of energy even when the pump is not actively running.

On average, the system may use about 25–30Wh per hour in standby, which means:

• 17% drop over 12 hours is expected,
  
• respond instantly to a power outage.
  

What should I do?

• fastest response during an outage, keep your PUMP PARTNER powered on and plugged into the wall outlet — this is the intended use.
  
• store the unit without use for many days, we recommend turning it off to conserve battery.

The E8 code indicates that your PUMP PARTNER has entered overload protection mode due to excessive external load. In this condition, you’ll notice the green power light remains on, but there is no power output.

To reset the system safely:

1. Unplug all pumps or connected devices from the output sockets.
   
2. Unplug the PUMP PARTNER’s AC input from your wall outlet.
   
3. Press and hold the Power button for more than 5 seconds until the unit fully shuts down.
   
4. Once it’s off, reconnect the AC power, and the PUMP PARTNER will automatically power on and restore normal operation.
   

⚠️ Important Notice

PUMP PARTNER is designed specifically for residential sump pump applications and is intended to operate within the limits of a standard 120 V / 15 A household branch circuit, in accordance with typical U.S. residential electrical practices.

When operating in grid-connected mode (green indicator), we recommend that the total connected load does not exceed 1500 W. Loads that may exceed this limit include, but are not limited to:

• Two primary sump pumps whose combined rated or actual operating power exceeds 1500 W
  
• Variable-speed or electronically controlled electric heaters, which may draw significantly higher power during startup or modulation, even if labeled 1500 W
  
• Grinder-style sewage or ejector pumps, whose actual operating power and surge current (often 50–60 A) may exceed standard residential circuit capacity
  

If you need to power equipment with a continuous load above 1500 W and up to 2400 W, please disconnect PUMP PARTNER from the wall outlet and operate it in battery mode (red indicator) only.

Operating high-power equipment in battery mode avoids exceeding household circuit limits and helps maintain safe, stable operation.

PUMP PARTNER Shutdown Guide

To ensure safety, preserve battery health, and prevent malfunction, please follow these steps to properly shut down your PUMP PARTNER backup power station:

Step 1: Disconnect AC Input Power

Action: Unplug the AC power cord from the wall outlet or any external AC power source.

Note: PUMP PARTNER operates in UPS mode and will stay on as long as AC input is connected. To power off, AC input must be disconnected first.

Step 2: Turn Off or Disconnect Connected Devices

Action: Power off or unplug any connected equipment, such as sump pumps, lights, or appliances.

Note: Shutting down while under load is not recommended and may affect system performance.

Step 3: Press and Hold the Power Button

Action: Press and hold the power button for 3–5 seconds until the red power indicator light turns off.

Note: This confirms the inverter and battery output are fully shut down.

Step 4: Confirm Complete Shutdown

Action: Check that all indicator lights and screen displays are off.

Note: Only after full shutdown is complete should you move, store, or transport the unit.

This is part of the floating charge technology, which is one of the key differences between Pump Partner and typical portable power stations.

Under normal conditions, power outages are rare but unpredictable — meaning your Pump Partner will spend most of its life on standby. However, any lithium battery that remains idle for long periods can gradually lose activity and lifespan.

To address this, we designed a gentle, automatic charge–discharge routine that activates every few minutes. This keeps the battery cells active, prevents degradation, and ensures the unit remains in optimal condition without requiring manual maintenance.

This floating charge design is also one of the main reasons why Pump Partner can remain plugged in continuously, while most ordinary portable power stations are not recommended for long-term connection to AC power.

The runtime of your sump pump during a power outage depends on three key factors:

1. – This is usually the product of your pump's voltage and current (e.g., 120V × 10A = 1200W).
   
   – You can often find this on the label of your sump pump.
   
2. – How often your sump pump runs during heavy rainfall (e.g., once every 2 minutes).
   
3. – How many seconds the pump stays on per cycle (typically 5–15 seconds per activation).
   

Want a more accurate estimate?

Use our Runtime Estimator on this page to see how long the PUMP PARTNER can support your sump pump during an outage. Simply enter:

• power rating
  
• activates
  
• each time
  

This tool helps you plan ahead and avoid flooding during extended power outages.

Yes, you can.
PUMP PARTNER provides the same output capabilities as other portable power stations or gas generators with similar power ratings. It can be used to run compatible household appliances — as long as they fall within its rated output range.

But what truly sets it apart is how it’s designed and what it's optimized for:

• It removes unnecessary features and components that often fail in conventional generators, improving long-term reliability.
• It’s engineered for continuous AC connection and standby readiness, making it ideal for sump pumps and other intermittent loads.
• Unlike most portable power stations, PUMP PARTNER features a far more precise battery management system.
  
  It continuously monitors and compensates for even the smallest standby power loss — especially when connected to the grid for long periods. Don’t underestimate these tiny standby losses — if left unchecked, your backup power system might still display “100%” after several days, but in reality, it could have virtually no usable energy left.

PUMP PARTNER prevents this by accurately detecting and replenishing micro-losses, ensuring your system is always truly at full capacity — ready to respond with real power when you need it most.

The Pump Partner is designed with simplicity in mind, so no technical expertise is required. It’s a plug-and-play system, which means you can set it up yourself in just a few minutes. Here’s how it works:

1. Unbox and place: Simply unbox the Pump Partner and place it in your basement near your sump pump.
2. Connect: Plug your sump pump into the Pump Partner’s outlet.
3. Power up: The Pump Partner is now ready to automatically supply backup power during an outage.

There’s no need to hire a professional, and you won’t have to worry about complicated installations or manual startup. When a power outage occurs, the Pump Partner will automatically kick in

One of the key benefits of the Pump Partner is its low-maintenance design. The system uses a 2048Wh LiFePO4 battery, which is known for its long lifespan and durability. Here are some details:

• Maintenance-Free: The battery is maintenance-free and does not require regular servicing.
• Long Lifespan: It has a lifespan of over 10 years and can handle more than 4000 charge/discharge cycles.
• Cost Savings: You’ll save money on battery replacements compared to systems using traditional lead-acid batteries, which typically need to be replaced more frequently.

You can trust the Pump Partner to provide reliable service with minimal upkeep, allowing you to focus on other things without worrying about frequent maintenance.

The Pump Partner offers several distinct advantages over other backup power solutions:

Versus Whole-House Generators:

Cost-Effective: Whole-house generators are expensive to install and maintain, often costing thousands of dollars. The Pump Partner is a more affordable alternative at a fraction of the cost.

Automatic Operation: Unlike many generators that require manual startup, the Pump Partner automatically activates within 10 milliseconds of a power outage, ensuring your sump pump remains operational without delay.

No Fuel Required: Whole-house generators typically run on natural gas or propane, requiring fuel storage and management. The Pump Partner’s battery system is self-contained and doesn’t require external fuel.

Versus Traditional Battery Systems:

Superior Battery Technology: The Pump Partner uses a 2048Wh LiFePO4 battery, which has a longer lifespan and higher efficiency compared to traditional lead-acid batteries.

Higher Capacity: With a 2048Wh capacity, the Pump Partner provides more power and longer runtimes than many traditional battery systems.

Smart Features: The Pump Partner includes intelligent chips that optimize power output and provide fault indications, features that are often lacking in basic battery systems.

The Pump Partner is designed to offer the best of both worlds—affordable, reliable, and easy to use.

The Pump Partner is specifically designed to thrive in basement environments, which can often be damp and subject to temperature fluctuations. Here’s how it’s built for durability:

Comprehensive Protection: The system includes several layers of protection, such as:

Overvoltage Protection: Prevents damage from voltage spikes.

Overcurrent Protection: Guards against excessive current that could cause overheating.

Undervoltage Protection: Ensures the battery doesn’t discharge too deeply, preserving its lifespan.

Short Circuit Protection: Prevents damage in case of electrical faults.

Over-Temperature Protection: Automatically shuts down to prevent overheating.

Minimalist and Robust Design: The Pump Partner’s design reduces unnecessary features to enhance reliability, making it a perfect fit for the often challenging conditions of a basement.

The Pump Partner is equipped with a digital display and smart monitoring features that make it easy to keep track of its performance:

• Digital Display: The front panel features a clear, easy-to-read display that shows:
• Fault Indicators: The Pump Partner includes smart chips that monitor the system and provide fault codes if something isn’t working correctly. These codes will appear on the display, allowing you to quickly identify and address any issues.
• Low Standby Power Consumption: Even when it’s not actively powering your sump pump, the Pump Partner consumes minimal power, ensuring that your backup power is always ready when you need it.

This smart monitoring system gives you complete control and insight into your backup power, so you can rest easy knowing exactly how your Pump Partner is performing.

The Pump Partner provides 3 years of free after-sales maintenance services. This means that during the first 3 years after purchase, you are eligible for maintenance support without any additional costs, ensuring that your product remains in optimal working condition. This warranty period reflects the company's confidence in the durability and reliability of the Pump Partner.