Parkside 20V 4Ah Battery from LidlJulian Ilett2024-10-16 | Parkside 20V 4Ah Battery from Lidl30A DC Circuit Breaker TeardownJulian Ilett2024-05-15 | Full teardown of a DC circuit breaker rated 30A.
Buy grade-A Yinlong LTO cells from: hakadibattery.comXtar VC8S Battery Charger TestedJulian Ilett2024-04-12 | This 8-bay charger supports lithium ion and nickel metal hydride cells, and can charge up to 2 cells at 3 amps, up to 4 cells at 2 amps, and up to 8 cells at 1 amp. LiFePO4 can also be charged if the charger is in Storage mode. Sodium ion can also be mostly charged in Storage mode. Cells can be graded (charged, discharged and capacity tested, then charged again) in Grad mode.
In storage mode, nickel metal hydride is first charged fully, then discharged to 1.29 volts.
In storage mode, sodium ion is treated as NiMH until it reaches 2 volts. Between 2 volts and 2.5 volts, sodium ion is treated as a faulty lithium cell and will periodically flag an error. Above 2.5 volts, sodium ion is charged normally up to 3.65 volts.Modular Shed - Nail PlatesJulian Ilett2024-04-08 | Wow, summer. Looks nice doesn't it?Shed Update April 24Julian Ilett2024-04-03 | What is going on in the modular shed this month?
Listen to Julian's story on the Simple Electronics podcast: youtube.com/watch?v=ZmHaGZZ3Jxk&t=3564sFnirsi SWM-10 Spot Welding Machine ReviewJulian Ilett2024-03-27 | A review of this handy desktop spot welder.
Fnirsi SWM-10: https://s.click.aliexpress.com/e/_oCJDJ8WPCIE MeltdownJulian Ilett2024-03-21 | Why is there no standard polarity for PCIE power connectors? This cheap PCIE power cable caught me out and killed an Antminer control board.
DBS1300: amzn.to/3TbBT1U £100 off code: BPO7TTKZThe BT189 Battery Tester is a Crazy VoltmeterJulian Ilett2024-03-06 | It measures the cell voltage and latches it. It doesn't show real-time data.
10% off code (Amazon US): BW7PR927 $100 coupon: Apply from product page (Save 10% plus $100 in total) Date of expiry: 2024-4-30 amazon.com/dp/B0CKP5KKMWBuilding a Modular ShedJulian Ilett2024-02-20 | Building my modular garden shed - from the beginning. Originally recorded in 2020.Boost and Buck Converters DPX800S and DPQ9010Julian Ilett2024-02-16 | High voltage (100V) and high current (10A) boost and buck converters.
Measures voltage, current and power with data logging functions. Checks and reports all the fast charge options of your power banks. Listens to PD communications and shows the relevant capabilities. Checks for e-marker chip in 5A type-C cables. Measures USB cable resistance. Includes a full function USB oscilloscope.The ZK-S4 Boost Converter works down to 2VJulian Ilett2024-01-25 | Boosting the voltage from a single LTO cell to do something useful with it.100A Relay Coil Overheat PreventionJulian Ilett2024-01-17 | This motorcycle starter relay is only intended for short duration use. Here's a technique to allow longer duration operation.Lithium Titanate Cells - an IntroductionJulian Ilett2024-01-13 | What are lithium titanium oxide cells? Where do they come from and what are they used for?
Sodium ion cells from: http://www.evpromax.comVoltmeter Ammeter Wattmeter Z3-20AJulian Ilett2023-11-12 | Self-powered voltmeter ammeter wattmeter with LED backlight. Input up to 200V and 20A (not yet tested).My First Sodium Ion BatteryJulian Ilett2023-11-06 | A 4-cell (4S) sodium ion battery using 33140 cells from http://www.evpromax.com
The chip on the BMS is from BYD http://www.datasheet-pdf.com/PDF/BM3451-Datasheet-BYDMicroelectronics-1098180768Wh LiFePO4 Battery Build - BMS & BalancerJulian Ilett2023-11-03 | Fitting a new balancer (I blew up the old one) and 80A BMS to my 8S5P LiFePO4 batterySunshine Fun Mine - Neon Sign from NeonipJulian Ilett2023-10-24 | Custom neon signs in a range of colours, fonts and graphical elements. The sign is mounted on 5mm acrylic and uses 12V LED strips. The supplied power adapter is 12V 5A. My sign draws 18W which is 1.5 amps at 12 volts.
20% off coupon code: Julian Product link: neonip.com/referral/julianSodium Ion Batteries from evpromax.comJulian Ilett2023-10-22 | A selection of sodium ion cells. 18650, 26700 and 33140 cells offer 1300mAh, 3300mAh and 10,000mAh respectively.
Sodium ion cells from: http://www.evpromax.comGive n Take Energy Transfer SystemJulian Ilett2023-10-20 | How to charge a 12V battery from a 24V battery. Uses a buck converter and a couple of voltage controlled relays.
Modules used: XH-M604, XY-CD63L, Ming He B3008XTAR Power Bank and Battery Charger PB2SL ReviewJulian Ilett2023-10-17 | A power bank and battery charger with PD3 and QC3
SEPIC buck-boost power supply: aliexpress.com/item/1005001278107340.htmlWhats the Plan? Update from the Modular ShedJulian Ilett2023-09-06 | What's the plan for solar panels, batteries and energy flow in the modular shed?Julians Electronics Postbag (PB161) - Lucky BagJulian Ilett2023-09-05 | A lucky dip of electronic delights from AliExpress
jlcpcb.comParallel Boost ConvertersJulian Ilett2023-08-29 | Can you connect boost converters in parallel? Do they fight like rats in a sack? Or do they play fair and share the workload equally.Part3: Supercapacitor 5.4V 250F SchematicJulian Ilett2023-08-27 | How the LN61C voltage detector IC doesn't provide proper protection for the supercapacitors on this module
Interested in my new garden workshop? Follow the entire build on Julian's Shednanigans: youtube.com/channel/UCXfDjPehpC7B7lW2JFxeS4wIdeas for a 8S5P LiFePO4 Battery BuildJulian Ilett2023-08-20 | Ideas for building a 768Wh battery consisting of 40 LiFePO4 cells. Each cell is 6Ah nominal 3.2VPart2: Testing ZK-SJ20 Buck Boost MPPT FunctionJulian Ilett2023-08-19 | How does the MPPT potentiometer on the ZK-SJ20 buck boost converter work?