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Does an MPPT solar controller turn excess voltage into Current/Amps? If my solar panels create 21V @ 7Amps and my battery only needs 14.2V to charge. What happens to the excess voltage? Is it just wasted away by dumping into a heatsink or is it converted into additional current/charge?

Sorry for the enigmatic subject line. I couldn't fit the entire query in. I have a 12V nominal solar setup, în my VW campervan. 2 x 110W solar panels on the roof, wired in parallel, a German Votronic 350W solar controller, and a DIY Lifepo4 battery bank, consisting of 4 x 3.3V nominal Winston...

Indervidual solar panel specs: Voc: 18.88V (Voltage Open Circuit) Vpm: 16V (Voltage Power Maximum) Isc: 7.58A (Amps Short Circuit) Imp: 6.88A (Amps Maximum Power) Max system voltage 500V My question is. I have 4 x 110w solar panels. I have wired 2, pair, in series (= 32V @ 8.88A) and then...

I have a 12V LifePo4 100Ah Winston Thunderbolt 4 cell unit. Connected is a Smart 123\SmartBMS and a 123\SmartRelay. The relay, cuts off either/or, the load or the supply if one of the cells should overheat or the battery cells should become unbalanced in their discharge or their chargng. My...

My name is Paddy. I am originally from the Wirral, in the North West of England. I lived between NOLA La, Tampa Fla, and Asheville NC in the US from 1990 to 2017. I came back to the UK in 2017 and purchased a VW T5 campervan, with the intention of traveling as much of Europe as I possibly could...

Lensun, are a Globally rising contender in the Solar and general PV market. However, I have had some pretty upsetting experiences with them as a product, and as a business. Firstly, they claim that their solar panels carry a two year warranty. That might hold water, if they actually issued a...

Has anyone made their own 123Smart BMS USB to Victron Venus running on a RaspberryPi, cable? I understand the manufacturers cables use an optocoupler to isolate the two circuits for safety reasons, however, is it possible to live dangerously and just run a straight USB cable from the...