Jump to content
Sign in to follow this  
RogerDat

LED security, and night light with battery back up completed

Recommended Posts

RogerDat

I see your point after sleeping on it, you mean in case explosive gas is present right? I have forced air vent t outside installed on sealed box.

  • Like 1

Share this post


Link to post
Share on other sites
Mikala

I already figured you took care of the hydrogen off gassing Roger. You ain't no dummy!

 

Just always a safety factor to dislodge plugs under load. Arcing will damage the plug / wall socket. If battery charge is complete though, then there should be very little load.

Share this post


Link to post
Share on other sites
Woolf

The charger is 12 v 30 amp  about 360 watt

 

on the 220 volt side that should be about 1.6 amps

lets say 2 amp max with losses

 

as the charger is not a inductive load

I cant see that there would be at lot of arcing when disconnecting

 

connecting the charger, there may be some arcing,

charging the capacitor, could draw some high current

 

ok I think that the charger has an invertor type power supply

Share this post


Link to post
Share on other sites
Paul

My view is this. Could something happen? As sure as Murphy (Murphy's Law) is alive and well - forever, it could. Is there much of a chance, under the circumstances that it WOULD actually happen? I doubt it. But, that isn't the issue, in my mind at least.

 

The issue to me is, safety, pure and simple. 

 

Last year, while I was away, I had a battery to explode. Til this day, we do not know what caused it. I suspect it shorted inside. My girlfriend was cleaning nearby when it happened. Fortunately, and Thank God, nothing happened to her - aside from her filling her britches. From that point forward, I have exercised even more safety precautions concerning batteries, than I have ever before. 

 

In this case, it is an AC breaker that is between a battery bank and an inverter. Simply put, I would not install ANY breaker there, aside from one rated for DC. These breakers are like $9.00 USD or $10.00 USD each. What is worth your safety, or the safety of your family? For just a few bucks, you can protect them. 

 

As a side note, I have experienced fuse failures. So, double protection isn't such a bad idea either. 

Share this post


Link to post
Share on other sites
Oz Jon

.......The issue to me is, safety, pure and simple. Last year, while I was away, I had a battery to explode. Til this day, we do not know what caused it.........

 

Exactly the point I have been trying to make Paul.

 

Batteries (particularly big ones like the 200AH one here) store a lot of energy and can deliver it very fast.

 

If there is an accidental short-circuit somewhere on the load side it can pull a huge current from the battery, cause a lot of heating, fire  and even explode the battery.

 

That's the part of the circuit which most needs to be protected.

 

Easily fixed at low cost with appropriate sized fuses (about 10A - 20A in this case) close to the battery, between the battery and the load.

Edited by Oz Jon
  • Like 3

Share this post


Link to post
Share on other sites
RogerDat

I finely got a tester, but every chart is different. As I read it, it is as follows on the Gage in green area.

Here is a video of the very tester I have. it appears I am in the golf cart battery area, which is what I have.

Am I right on this?

 

1275

_____

1300 + 2 clicks

_____

_____

 

at 30 degrees C.

Share this post


Link to post
Share on other sites
Paul

What tester do you have?


Specific gravity?


You should have a chart from the manufacturer, for your specific battery. The SG can change a bit from battery to battery, if this is what you are talking about - charge?

Share this post


Link to post
Share on other sites
RogerDat

Yes, SG. I will call the distributor  tomorrow. I found the very item I bought, mine said instructions on back, but when got home, it was blank of course.

 

It is at 1300 + 2 clicks, so I read that as 1340.  13.25 VDC.

 

post-7667-0-17438400-1481797693_thumb.png

 

post-7667-0-54870200-1481798444_thumb.png

Share this post


Link to post
Share on other sites
Woolf

the video youtube

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Sailfish Bay Fishing Charters

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use, Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue..