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This store has earned the following certifications.
ExpertPower's LiFePO4 batteries are the No.1 on Amazon for their reliability and longevity. Offering 2500 - 7000 cycles, these batteries last up to 10 years. With built-in Battery Management System (BMS), they protect your battery from overcharge, deep discharge, overloading, overheating, short circuit, and excessive low self-discharge. This ensures up to a year of maintenance-free storage.
Our batteries also feature a low-temperature cut-off, which prevents charging below 23°F (-5°C) to ensure your battery operates under optimal conditions.
Our off-grid solar system kit includes everything you need to harness solar power efficiently and store it for later use.
Monitor your battery's state of charge, temperature, protection warnings, and other vital metrics with our built-in Bluetooth feature. Easily track your battery level on your phone using the handy app.
Our system supports expansion up to 4 batteries, either in series at 48V 200Ah or in parallel at 12V 800Ah, making it highly customizable to your needs.
The 40A MPPT charge controller uses modern solar technology to maximize your solar array's power output by over 20% compared to Pulse Width Modulation (PWM). It also auto-detects 12V/24V systems.
Our 3KW Pure Sine Wave Inverter/60A Charger is designed to meet the needs of all battery systems, including AGM, Wet, Gel, and LiFePO4. It comes with 8 profiles and a built-in 30A transfer switch with UPS functionality, switching between shore power and battery power in just 5ms.
We accept order cancellation before Within 24 hours the product is shipped. If the order is cancelled you will get a full refund.
If for any reason you are not satisfied with the purchased item,You have 30 days after delivery of your order to return an item.
After 30 days of delivery of your order, we will no longer accept returns.
To request a return,please email us at:[email protected] ,We will respond within 24 hours after
the consumer sends the email (except weekends).
If it is a quality issue, please
provide an order number and attach clear photos of the items that represent the
issue.
After we receive the returned order, our Quality Assurance department will
inspect and verify the condition of the item.Upon acceptance of your return, a refund
will be issued to the original form of payment within 1-3 business days.
Items returned without authorization will not be accepted.
The time frame for return
must not exceed 30 days from when the original order was received.
Any promotional
gifts must also be returned with your returned item.
All items must be returned in
their original condition, without scratches or signs of wear, and must not be resized or
altered in any way.
Your return needs to be sent within the given time frame(3-12
working days)
Please make sure you provide us the tracking# and receipt after you
return.
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, we will credit the credit limit to your credit card or original payment method within 5 business days (bank processing time frame).
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