Is the recharge threshold and terminal battery voltage adjustable? I want to keep the batteries between 80% and 20%

No. I don't think this is possible, unlesss you write a script that monitors the voltage or % of charge, and open a relay that would cut off the power input to the system... You would need some external equipment (arduino?) for that.

Are the batteries hot-swappable? In other words, can I connect an external power supply and swap the batteries out while that is on?

Hi friend, Sorry that the X728 on board 18650 batteries does not support hot-swappable, please swap the batteries after power cut off. best regards, Geekworm Team

Does the rtc have a separate battery? or does it run on the 18650 batteries? what happens if you remove them? will it "lose" time?

Hi friend, The RTC function runs on the 18650 batteries. It will "lose" time if you remove the 18650 batteries. best regards, Geekworm Team

Can I use more than two batteries with the x728?

It holds two batteries, it does have an second input for more battery boards.

X728 | Desertcart South Korea

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

₩115720

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Description

🔌 Power your Pi like a boss — never miss a beat with Geekworm X728!

COMPACT YET MIGHTY - Sleek, space-saving form factor with Type-C and DC jack inputs, delivering up to 30.6W output — perfect for professional setups demanding reliability.
SMART BATTERY INTELLIGENCE - Stay ahead with real-time battery capacity monitoring and automatic low battery shutdown to protect your projects.
EFFORTLESS POWER MANAGEMENT - Experience safe shutdowns, auto power-on, and full software-controlled power off for ultimate convenience and device longevity.
EXPANDABLE STACKABLE DESIGN - Reserve the 40-pin header to stack with other Pi accessories or SSD shields, unlocking powerful data backup and enhanced applications.
UNINTERRUPTED POWER UNMATCHED CONTROL - Seamlessly keep your Raspberry Pi 4 running with a robust 5.1V 5A UPS backup that handles power outages like a pro.

The Geekworm X728 UPS & Power Management Board delivers a reliable 5.1V 5A power backup solution tailored for Raspberry Pi 4/3 series. Featuring intelligent battery monitoring, safe auto shutdown, and RTC support, it ensures uninterrupted operation and data safety. Its compact design supports stacking with other Pi accessories, making it an essential upgrade for professionals seeking seamless power continuity and expandability.

Specifications

ASIN	B087FXLZZH
Amperage	6 A
Battery Cell Type	Lithium Ion
Best Sellers Rank	#540 in Computer Uninterruptible Power Supply Units
Brand	Geekworm
Color	X728
Connector Type	Type-C, DC jack
Customer Reviews	4.2 4.2 out of 5 stars (91)
Enclosure Material	Plastic
Form Factor	Compact
Input Voltage	5 volts
Item Dimensions	3.35 x 2.52 x 1.38 inches
Item Dimensions D x W x H	3.35"D x 1.38"W x 2.52"H
Item Highlight	AC Power Loss Detection, Auto Power on, Safe Shutdown, Battery Capacity Reading, Low Battery Auto Shutdown, Buzzer
Item Weight	0.06 kg
Manufacturer	Geekworm
Maximum Power	30.6 watts
Mfr Part Number	TB-2019-71
Model Number	X728
Number of Items	1
Number of Outlets	1
Output Current	6000 milliamps
Output Voltage	5.1 volts
Output Wattage	30.6 watts
Power Plug Type	No Plug
Runtime	30 hours
Voltage	5.1 volts
Warranty Description	3 months
Wattage	30.6 watts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

₩115720

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.