X728 V2.2 is released at June 28th 2022. X728 V2.3 is released at August 25th 2022.
- Adds Battery Reverse Polarity Protection circuit & LED indiciators on v2.2
The X728 is an advanced uninterruptible power supply expansion board for all current models of the Raspberry Pi (Raspberry Pi 4B/3B+/2B/B+) using a 40 pin header. It provides 5.1V 6000mA Power Backup for even the most demanding Raspberry Pi set UPS, intelligent and safe power management, safe shutdown, auto power-on, full poweroff from software, and a real- time clock.
User Manual: https://wiki.geekworm.com/X728
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For Use With
Raspberry Pi 4 Model B
Raspberry Pi 3 Model B+ /3B/2B/B+/3A+
- Raspbian Stretch
- Safe shutdown function tested for Raspbian, other OS NOT to be tested and advised
Smart and powerful Uninterruptible Power Supply (UPS)
- Provides continuous operations for up to 10~30hours (depending on battery type and qty used)
- Max 5.1V 6000mA Power Backup for even the most demanding RPi set ups
- Can work with X728-A2 stackable 2-cell battery holder to increase battery capacity
- Integrated over current protection and over voltage protection
- Integrated Maxim's fuel-gauge systems (Reading battery voltage and percentage via i2c)
- User Manual: https://wiki.geekworm.com/X728
Intelligent and safe power management
- Equipped with momentary button for easy power control
- Press the button to turn on
- Hold for 1~2seconds to reboot
- Hold for 3~7seconds to implement safe shutdown
- Hold for >8seconds to force shutdown
- Supports safe shutdown and full poweroff through software
- Integrated IN-to-SYS pass-through path to pass the input voltage to the system
- Advanced system power-path management avoids batteries frequent charging and discharging
- More detail: https://wiki.geekworm.com/X728
Integrated Hardware DS1307 Real Time Clock (RTC) with Battery Back-Up
- Keeps track of the time while the Raspberry Pi is switched off
- Allows the Raspberry Pi to retrieve the current date and time when it is switched back on
- Uses the 18650 battery to maintain the date and time - no additional battery required
- Powers the Raspberry Pi via the 40-pin header - no additional cabling required
- On-board DC power jack (5.5*2.5mm) and Type-C socket convenient for power input
- More detail: https://wiki.geekworm.com/X728
- Power supply via Type-C socket : 5Vdc ±5%, ≥3A, Via DC power jack : 5Vdc ±5%, ≥4A
- UPS output : 5.1V ±5% Max 6A
- UPS charging current: 2.3~3.2A
- Terminal Battery Voltage : 4.24V
- Recharge Threshold : 4.1V
- Do not apply power to your Raspberry Pi via the Micro USB socket or Type-C socket.
- Do not use 18650 battery with built-in protection circuit.
Only X728 V2.3
- 1x X728 V2.3 Expansion Board
- 8x Screws M2.5 *5mm
- 4x Spacer M/F M2.5 *20mm
- 4x Spacer F/F M2.5 *20mm
- 1x Jumper link Pitch 2.54mm
Read Me: Different variants sells different items. Please refer to the product photo of the packing list of each variants.
- All orders will be shipped within 48 hours on receipt of cleared payment on Woking Days. (From Moday to Friday in 24-48 hours as usual, Except for Chinese legal holidays or big holidays or Weekend)
- We ship the orders from China, now due to the impact of COVID-19, all the shipping way will have delay include fast shipping way like DHL, the delivery delay is really out of our control, hope to get your understanding and patience.
- If you need faster shipment, please choose DHL or EMS or FedEx IP etc(Shipping fare paid by yourself). Or we will deliver via the default method of standard shipping.(Usually by China Post Registered Air Mail with tracking number if the order ammount is more than $9.99); Please contact us to calculate the shipping cost by faster shipping way like DHL, EMS or FedEx...
- Please make sure that your shipping address is 100% correct with full name and a right phone number included, the phone number is very important in the shipping address.
- We ship items to worldwide with delivery time guarantee. Please understand the unexpected delay during the international shipping.
- We usually declare a lower value for all orders to avoid the cutoms tax for our customers, but the buyer still need to do customs clearance themselves if it's a requirement by the destination country.
[Return & Refund Policy]
- If you didn't receive your product after 6 months or it is significantly different to the description, we guarantee to resend new or refund your payment. But due to the shipping delays of international shipment, we hope to get your understanding and wait for some more time.
- We provide resend or refund or store coupons for the item you received was substantially different from the item represented on the product detail page.
- For the item you received was damaged or defective,please take photos of original package with shipping labels, package weight, package items details as proof to send us to find solutions,thank you!
- It is better to reject the package if you find it obviously broken and ask for compensation from your local post office.
- We accept any unused item in its original package as return within 7 days of delivery. Buyers must pay for the return shipping fee, provide the tracking number, specific reason for the return.
- If buyer's reason lead to the return package due to fail delivery in destination country, the buyers need to pay for resend shipping fee and we deduct shipping fee before issue refund.
- We will refund to buyer after we receive the return packages in its original condition package with no items missing. Or buyers could choose to have a replacement.
- We accept to refund or resend new for our customers as product quality problem. But for the product value above $30, buyer must return the product to get a refund, the return shipping cost should be negotitated between the buyer and seller as this is a international shipping.
- As our products belongs to DIY products, it really need some DIY skills and professional knowledge, also there will be the risk of failure for your DIY projects which may cause your loss such as one or two device burnt or defective due to not proper operation.
We can be reponsible for exchange new one or repair for the defective products which you bought from us, but you must send back us the defective product to us and also pay for the return shipping cost. The buyer must bear the shipping cost of return for exchange.
We only accept to exchange after we get the defective products received. As it is international shipping, it usually will take a longer time for your return package, please understand about this.
Geekworm products on the website all support a wholesale price if you need large quantities. You can send us
your request about the item you need, item quantities, destination country of shipment. Then we will send you our lowest price according to item quantities, and the shipping cost also will be calculated according to the quantities you need.
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