Athome (tasmota, open source) https://de.athom.tech/ Tap P110 (no ESP32, no tasmota, no custom firmware, local API, HA integration through HACS) Shelly Plug MyStrom Kankun-SmartPlug Consumption M..
Archives : März-2023
PV Input Overvoltage PV Input Reverse Polarity Battery Input Overvoltage Battery Input Reverse Polarity Over temperature High MOSFET Short This can lead to fatal damages of battery, and equipment connected to it, as solar panels are directly connected to the battery. Solution: Low MO..
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MPPT-2420-LC Deprecated, new design mppt-2420-hc mp..
The Fugu is an impressive Instructables project. I’ve recently finished building it and put it under test, to see wether I can use it with my 24V 8S LiFePo4 Battery. Compared to lead acid battery, Lifepo4 batteries need a Battery Management System to keep cells in specified voltage range. I expect the Charger to handle ..
This is an (unfinished) teardown and analysis of the JK BMS The JK is a popular BMS among the China BMS (Daly, JBD, ANT), probably because it features an active balancer with balancing currents up to 2 A and the good UX of the iOS App (Android being unable to connect). BMS power consumption at ..
STM Microcontrollers Pa..
I ordered this inverter from Aliexpress supplier POWLAND Official Store on 2021-06-08 for US $118.22 (Product Link). In September 2022 I ordered a similar from same supplier. It worked quite well for about 6 months, charging my EV with constant 2000W from a 280Ah LiFePo4 battery, until we powered a big truck battery charger and ..
I ordered this inverter from Aliexpress supplier LQ Inverter Store, product link (out of stock, similar). We tried to power a water pump (900 W power, TODO: power factor?) and the inverter died after 1 minute or so. No output, dark voltage displays (both DC and AC). The supplier said our terminal wires were too ..