Any electronics experts in here?

[Diddums]

I'm building a custom LED thingy for under the seat of my scooter, and it's been about a billion years since I dabbled in electronics so I just need a bit of a sense check if anyone's able please!

What's a good quality 18650 battery, and what's a good seller? I've heard far too many negative things about fake batteries and whatnot.

I'll be charging it with this:

5pcs 5V 1A USB Type C 18650 TP4056 Lithium Battery Charger Module Charging Board | eBay

5PCS X 1A TP4056 lithium battery charging module. Current: 1A adjustable. It is better that the charging current is 37% of the battery capacity. Input interface: MICRO.

www.ebay.co.uk

I'll be adding a little push-button switch to turn the light on, and it'll turn off automatically. For this I intend to use this:

10s~24h Programmable Timer Control Switch Module Timing 3.3V-18V UK Stock | eBay

Can drive the 3V relay, 5V relay, 12V relay, LED lamp etc.;. Timing accuracy is higher than the ordinary 555 timing, timing simulation of analog circuits. Module working current is less than 1mA. Can choose low input, high input, low output, high output, through the short-circuit points;.

www.ebay.co.uk

I've not yet decided on an LED, need to research them still. However, can I wire directly to that PCB, or do I need a relay / driver for the LED?

I guess this depends on what LED I use, but any advice would be greatly appreciated. The most important aspect here is quality, reliability and compactness. I'll be 3D printing the housing as well so it's very flexible in terms of dimensions and shape.

Anythnig wrong with what I've posted here?

Cheers

 

[Diddums]

molicell, they are what are used in Tesla battery packs...

BUT... 18650 are 4.2v and LEDs are from 1.2 to 3.6v depending on colour and type, so you will need to step down and LEDs are low amp so you may be better of looking for a cheaper high capacity low amp battery. you can look at 21700 or 20700 for more capacity.
Why don't you just buy a 18650 torch and mod that? or a vape mod and use the 510 led adapter.

EDIT: this is where I get my vape batteries from... https://www.fogstar.co.uk/. there's always a discount on Fridays.

Thanks. I probably should've read this before ordering

I've now ordered all this:

Timer controller:

Timer Switch Controller Board 10S-24H Adjustable Delay Relay Module For Delay Switch/Timer/Timing Lamp - AliExpress 502

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

Charging board:

Security measure

order.ebay.co.uk

Battery:

Samsung 26J - 18650 Battery - 2600mAh - 10A

2600mAh - 10A Continuous Discharge - Flat Top/Button Top/TabsOrder by 3pm (Monday to Friday) for same day dispatch!Brand: Samsung SDIModel: 26JSize: 18650Chemistry: ICRNominal Capacity: 2600mAhNominal Voltage: 3.6VDischarge: 10A Max ContinuousPositive: Flat/Button Top/Tabs (please...

www.nubattery.co.uk

Switch:

Switch Push Button Circular 12mm Momentary Black White Red Green Blue Yellow | eBay

Red\Green\Black\White\Yellow\Blue 12mm Push Button Switch. Available Colours: Black, White, Red, Green, Blue, Yellow. Commonly used as vehicle horns, ignition switches and for doorbells.

www.ebay.co.uk

LED:

10pcs 60x8mm 2V 3V LED COB Light 3.7V Chip On Board Light Bar Warm Cold White Blue Red Color 1W 3W LED Lighting Work Lamp DIY - AliExpress 39

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

Dunno if the LED is going to work right out the box, might need a little driver for it. Will see when it arrives.