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Showing posts with the label battery

Started using old 100W PV panels to charge lead-acid 12v leisure batteries

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These have been gathering dust in the shed for the last year. So will see if they will still take a charge. The two 100W panels and epever charge controller were recently recovered from being leant to the Shannon Tidy Towns 40' Container. Based on an Epever LS2024B https://shop.thesunpays.co.za/products/epever-ls2024b-solar-charge-controller-20a-pwm And monitored using a Blynk code on a NodeMCU.(A version can be found on my laptop under  Tracer-RS485-Modbus-Blynk-V2.ino as not yet shared to Github) The charging is monitored here..

Building a demonstration 1000W battery 2400Ah power station

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I have wired (with fuses) two Renogy 12v 100Ah batteries in parallel and connected to a 12v 1000W hybrid inverter. This was then enclosed in a wooden box with: 1) a weatherproof mains socket. So mains equipment can be plugged in and draw 240 vac at up to 1000W for 2.4 hours. 2) a mains plug (for overnight/cheap rate charging of the batteries) 3) A pair of MC4 PV panel connectors. So the batteries can also be charged for free on a sunny day via a PV panel. I still have to weatherproof the box and add a webserver to allow its operation to be monitored via a mobile phone. It can then be a portable power station and used for demonstration purposes, say, to power laptops on our information table :)