Power Bank Keep-Alive based on 555 Timer (SMD)

Name: Power Bank Keep-Alive based on 555 Timer (SMD)
SKU: 23766
Price: 9.00 USD
Availability: InStock
Rating: 4.50 (16 reviews)

(16 Reviews)

Keeps your power bank active when powering low power devices/projects

Designed by Colin Hickey in United Kingdom

Power Bank Keep-Alive based on 555 Timer (SMD) 1

Power Bank Keep-Alive based on 555 Timer (SMD) 2

Power Bank Keep-Alive based on 555 Timer (SMD) 3

Power Bank Keep-Alive based on 555 Timer (SMD) 4

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Keeps your power bank active when powering low power devices/projects

EU Shipping Please be aware that tindie has not put anything in place for collecting VAT so all items shall be sold as zero vat so the buyer is responsible for any local charges. What is it? This p…

Colin Hickey Shipping Policy:

Products are normally shipped next working day, however during busy periods this may extend slightly. Due to Covid still causing issues shipping can take upto 6 to 8 weeks so please bear that in mind before chasing up where your package is. It should be far quicker but please keep this in mind.

Tracked or Tracked & Signed options are available to most locations. This may not get your kit to you any quicker, but it adds peace of mind that you know where it has got to especially due to Covid delays.

It is your responsibility to pay any import duty or other taxes where appropriate.

Important note for European Union customers Tindie is unable to comply with new EU tax regulations, so you will have to pay VAT on your order to your local carrier when it arrives in your country. You may also have to pay import duty too. This is a legal requirement.

Quantity	Price
1-9	$8.00
10+	$7.00

Review Breakdown

Average Ratings

Product: (4.38)

Documentation: (4.50)

Shipping: (4.69)

Communication: (4.44)

Shannon | Sept. 23, 2024

Stopped working after a few days

Purchased this and did not work with a Laser 20000mAh Portable Charger but worked with a 10000mAh charger.

It worked for a few days then would only stay on for maybe fifteen minutes. Contacted seller two days ago and have not heard anything back.

Response from Colin Hickey | Sept. 24, 2024

Those two days were a weekend. Customer contacted me on a Saturday and I replied on Monday, I try to keep my weekends to spend with family which I don't think is unreasonable. I am a one person store and not amazon. Customer has not replied to my message but has had a full refund.

I always try to work with customers if any issues do occur.

Zhiyuan | March 5, 2024

Great product! Works exactly as described.

This is the product that I was searching for. I was trying to use a power bank to provide power to a low-power Bluetooth device via USB, but the power bank turns off automatically after about two minutes. So I ordered two of this keep-alive unit. The seller shipped the products literally on the next day, and the package crossed the Atlantic Ocean in seven days, and appeared at my doorstep in the following week.
I tested the two units on the same power bank with auto power-off feature, and was happy to report that they both work exactly as described. They successfully disabled the auto-off feature of the power bank, thus keeping it on in a sustained manner. The connected Bluetooth unit has been receiving sustained power for more than an hour thus far, without causing any apparent power drain on the power bank.
The attached case was definitely built to last, with a strong semi-transparent white plastic, although it's a little thick in height, making the device almost like a cube. I don't think I can post a picture here, but the actual dimensions of the product are: L = 45mm (including 13mm as the length of the exposed male USB connector), W = 25mm, H = 18mm). But I guess it's good design by leaving sufficient space inside it to facilitate heat dissipation.
Overall very good product! I will definitely recommend it.

Mark | Dec. 25, 2023

It works

I bought a couple and they are all good and they work as expected. I have yet to test and comment on the longevity of the units that I have with me, but so far in my experience, I must say the creator did a phenomenal job on these small useful devices.

Raven | Sept. 19, 2023

Super Simple

These are really amazing, compact keep-alives that can be used with lots of different projects, such as stringing together multiple USB power banks. Simple and reliable with a 3D printed case too. Shipping was really quick as well! It would be neat if they had a way to vary how much power they "blip", without needing to go to the do-it-yourself version (for someone like me who's not great with soldering). Thanks for the amazing work you do!

Matt | Aug. 24, 2023

Excellent!

Great product, solves my problem. Very fast shipping, I received it in the US within about a week of placing the order. Thanks!

Jessica | April 12, 2023

Stopped working after a week of use.

Worked well for a week then stopped working as designed. Will not keep power bank activated anymore longer than the default.

Response from Colin Hickey | April 12, 2023

Always happy to help if your having issues, just drop me a message.

Thanks
Colin

Rick | March 28, 2023

Quality Product

Functions exactly as described. Keeps my battery pack from shutting don due to low current draw. Excellent seller to work with.

Saiful Azree | March 26, 2023

Solve my issues..

Been looking for a device that can make the power bank continuously supply to my sensors. Bought a few of them. Feel a bit warm when connected but they work. Thanks.

Samppa | Jan. 29, 2023

Perfect. This is exactly what I needed.

Really quick delivery and product is as described. Early days so far but I've connected this to a battery with led strip lights with a motion sensor and module is ticking over to keep the battery alive. Not sure about the battery drainage but all looking good so far.

Łukasz | Dec. 6, 2022

Everything is OK.

The product complies with the description, but in my case it did not work with Powerbank Baseus BS-30KP365.

Roy | Nov. 11, 2022

Does exactly what it said it would do.

I needed something to stop my power bank switching off (VariCore V20i charger/power bank) when I connected my modded FX chronograph. It was switching off after 10 seconds due to low current draw. This little module did the job perfectly. I ordered the extra 3d printed case and it keeps everything compact and protected. I can now use my chronagraph for as long as I want. The 2 3000mHa 20700's should last for months before needing charging.
Communication has been fantastic with email notifications all the way from order to delivery . The module was packaged very well in a small box and arrived in perfect condition.

Stanislav | July 18, 2022

Great

Thank you, works fine.
Looking forward to complete my project for bicycle lightning via powerbank :)

Niklas | June 21, 2022

3

3 because it doesn't work with all my power banks, and I understand they all have different configurations.

Good overall

Don | Nov. 30, 2021

Perfect!

Just what I needed for Big Clive's Super Computer, and various other projects.
Bypasses the Power Bank Auto-Off feature with absolute negligible power drain.
Excellent quality product. Well made (complete with 3D Printed Case).
Competitively priced, Well packaged, Fast International shipping (AU).
A pleasure to deal with. Many Thanks! :)

Teemu | Nov. 8, 2021

Great!

This is exactly what I wanted! I have few low current devices and now I can use them with a power bank with this adapter. Fast delivery (including customs clearance with new EU restrictions). Thank you! :)

James | Sept. 22, 2021

Exactly What I Needed!

Wow, this thing works great.... It keeps my little power bank powering my STM32 development board from shutting down in my prototype. Perfect! Thank you so much for offering this little device for sale! Great price too. --Jim, Boston, USA

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