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.

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Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B

Product ID: 487149966

Details

Battery cell composition
Lithium Ion
Brand
Geekworm
Colour
X728
Material
Plastic
Voltage
5.1 Volts

⏰Real-time clock for precise timing

⚡Auto power-on & safe shutdown

🔋5.1V 6A max power output

₹ 662

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Description

⚡ Never lose power, never lose progress — UPS that keeps your Pi unstoppable!

STACK EXPAND - 40-pin header reserved for stacking with other Pi accessories, unlocking limitless modular possibilities.
SEAMLESS INTEGRATION - Compatible with HDD/SSD shields for safe data backup, making your Pi a powerhouse for professional projects.
SMART POWER MANAGEMENT - Intelligent UPS detects power loss instantly, enabling auto power-on and safe shutdown to protect your data.
BATTERY BACKED RELIABILITY - Supports 18650 batteries (without built-in protection) for hours of uninterrupted mobile or remote operation.
POWER YOUR PI WITHOUT FEAR - Delivers a robust 5.1V/6A backup to keep your Raspberry Pi 4B/3B+ running seamlessly during outages.

The Geekworm X728 V2.3 UPS board is a high-capacity power management solution designed for Raspberry Pi 4B/3B+ models. It delivers a stable 5.1V output at up to 6A, supports 18650 battery backup, features real-time clock functionality, and offers intelligent power loss detection with auto power-on and safe shutdown. Its 40-pin header allows stacking with other Pi accessories, enabling enhanced modular setups and safe data backup with compatible HDD/SSD shields.

Specifications

ASIN	B087FXLZZH
Amperage	6 Amps
Battery Cell Type	Lithium Ion
Best Sellers Rank	401,079 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,540 in Barebone PCs
Brand Name	Geekworm
Colour	X728
Connector Type	Type-C USB, DC power jack
Customer Reviews	4.2 4.2 out of 5 stars (86)
Enclosure Material	Plastic
Form Factor	Rack
Input Voltage	5 Volts
Item Dimensions	8.5 x 6.4 x 3.5 centimetres
Item Weight	0.06 Kilograms
Manufacturer	Geekworm
Manufacturer Part Number	TB-2019-71
Maximum Power	30.6 Watts
Model Number	X728
Number of Items	1
Number of Outlets	1
Output Current	6 Amps
Output Voltage	5.1 Volts
Output Wattage	30.6 Watts
Power Plug Type	No Plug
Runtime	30 hours
Voltage	5.1 Volts
Wattage	30.6 watts

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₹ 662

Duties & taxes included

In stock

Sold byAmazon IndiaDelivered 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 India.

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Join PRO →

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