Heavy duty battery charger - For inverter and automotive batteries.

D

Din

Explorer
Looking for heavy duty battery charger, mainly for inverter battery.
Scenario - village home which I visit once in a month or so has an inverter and 150AH 12V battery. Works fine as only small appliances are connected when I am away. Like few security cameras etc.

No major power cuts in the area, but the battery goes down once in a while, like when there is some problem with wiring of the house, with meter etc. Happened recently and I had to give it to the battery shop guy as the inverter alone won't do it if the battery voltage goes down a lot, like less than 8V etc. Problem is, the nearest city is 15km away and the guy charge a lot for it.

Are there good heavy duty battery chargers which can be used for batteries whose voltage is pretty low? How much they cost (average) usually? Any members here use those?
 
Din said:
Guess nobody use it or it is the wrong section. Any pointers?
Click to expand...
Too niche use case. My parents don't live in a big city & hometown has 2-3 hr powercut everyday but the inverter works & charges as expected.

If you have the money & area has good sunlight, maybe explore solar panel.
 
Update or the long story short! - Went to electronic street (Cochin, Kerala) and checked few shops. No luck! While returning, saw a repair shop and thought I will check with that guy. He was kind enough to spend some time asking my exact requirement and details of battery etc. Asked me to sit and explained why it may not be a good idea to buy a heavy duty charger. Instead, he took something from the service area which he built himself and told me how it works.

Basically it is a charger but pretty small and produce 12V. We need to connect this to battery which need to be charged. Then switch on the inverter! As the inverter see 12V, it will start charging. Once the voltage is up and manageable by inverter, we can disconnect this charger.

Reading more on it in internet, looks like a good idea. Yes, it will not work in all scenarios. Like water is drained or voltage is too low. But I have a feeling that it will work for my use case. He is ready to build one for me, and after talking for sometime, he is even ready to have it for few days (rent may be, still a good idea) when I go village home. Liked the guy as he wasn't forcing me on anything but explaining things in a pretty simple manner.

I see such small chargers are available online too. May buy one of those, or will check with this guy.

Thought I will share the info.
 
Top Bottom