Give ‘n’ take energy transfer system
How to charge a 12V battery from a 24V battery. Uses a buck converter and a couple of voltage controlled…
Xtar power bank and battery charger pb2sl review
A power bank and battery charger with PD3 and QC3 XTAR link: https://www.xtar.cc/product/XTAR-PB2SL-Charger-213.html Amazon purchase link: https://www.amazon.co.uk/battery-Charger-Version-XTAR-incl
Buck converter teardown – juntek dpm8650
What's inside this high current buck converter? Also, what's inside the wireless control panel?
Julian’s battery postbag pb162 – balancer and bmss
Battery stuff, including: https://www.aliexpress.com/item/1005005241453498.html https://www.aliexpress.com/item/1005005000358800.html https://www.aliexpress.com/item/1005004937231338.html https://www
10a ammeter voltmeter wattmeter fault and fix
This digital power meter has a manufacturing flaw. It's supposed to measure up to 10 amps, but has been fitted…
Sodium ion 18650 battery discharge test
First test of a sodium ion battery, charged to 4.1V and discharged to 1.5V. Did the 18650 cell yield the…
Spot welding with supercapacitors
Using the Kekk supercapacitor spot welder to weld nickel-plated steel strip to 18650 lithium-ion battery cells. Kekk Supercapacitor spot welder:…
What’s the plan? update from the modular shed
What's the plan for solar panels, batteries and energy flow in the modular shed?
Julian’s electronics postbag pb161 – lucky bag
A lucky dip of electronic delights from AliExpress https://www.aliexpress.com/item/1005005859082063.html https://www.aliexpress.com/item/1005002674069773.html https://www.aliexpress.com/item/10050044