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  1. Richard_Electronics

    Charging different types of batteries ?

    I think this is my fault.. I have never tought about battery tipes.. i just didn't care.. Sorry don't get mad im just a amateur.. Inglish not rili gud :P ~~ I used to charge 12v Lead battery with a big, old and heavy car battery charger (output 11.6v but when is connected to charged battery...
  2. Richard_Electronics

    Charging battery with level indicator ?

    Here, i have one simple question and i hope solution can be simple too. I have a charger for car battery, a car battery and a battery level indicator(for 12v battery). My car battery charger does not have a battery level indicator build in so there is no way to see if battery is full without...
  3. Richard_Electronics

    Cooling electronic circut ?

    Hi. I have this Step down converter: https://prnt.sc/hhthh3 and i have problem... I need to use it for 3-6 hours (for long time) but it is heating up, i don't want to damage it or burn it so if there is a way to cool it while in use some how i will be happy to hear solution recommendations :D...
  4. Richard_Electronics

    Sealing Lead Acid Car Battery.

    Hey well, i have a car battery VARTA A14 12v 40Ah CCA:330... And for some reason its previous owner cracked opet 4 holes (it was Sealed Lead Acid Battery before he opened it) the plastic is cracked and there is no any caps for holes, i covered it with cloth made of synthetics so dust can't go...
  5. Richard_Electronics

    Connecting car battery to a portable speaker.

    Hi, im about connecting car battery to a portable speaker, as title says. I'm amateur in electronics so i need help... I have Kymco GTX4L-BS battery (not sure where it is from) Specs: 12v 3Ah (10HR) CCA: 50A (I have also "VARTA A14" 12v 40Ah 330A(en) wich i want to use for same purpose if is...
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