2.6A/HR Sealded battery for Mr. Boss

[Delivers1234]

Hi. Looking for electrical help here.

So I have a Mr. BOSS that is charged 2.6A/HR Sealed Lead Acid Internal Battery. The charger is 15V 5A AC/DC Charger.

I would like recharge the batter without an AC connection. So if I hook up a 12 volt wire to the DC input is that enough to charge the batttery? Or should I take out the battery and charge it seperatly? Could I add two wires -,+ to the battery and hook it up to battery source?

Without a 120v outlet, how do i charge the battery? I have a 12 volt jumper for cars that has a cigarette output (12v). Is there a solar alterative? Or should I just buy a 2nd battery to use?

I took a picture of the battery. Its in the bottom so to change it i would have to tip the Mr. Boss.
Should I get a propane generator or simply a battery charger? This is for camping?

Please help.

I don't know how to charge the 2.6A battery, ie rate etc.
The XCW20 has a DC Charger (but I'm not sure what amps it gives from the DC. The company said it would not work.

BOSS-XCW20 Battery Operated Shower System

The BaseCamp B.O.S.S XCW20 is the most advanced, portable hot water generator in the world. All you need is a charged battery, water, and a 1lb. propane cylinder to have hot water at your fingertips in even the most remote places.

www.mrheater.com

2.6A/HR Sealed Lead Acid Internal Battery

15V 5A AC/DC Charger

 

[mmckenna]

So, if you look at the side of the battery, it shows a "standby" voltage of 13.60 - 13.80 volts. That would be considered a "float" charge. Float charge voltage is the level at which you can leave the battery hooked up to a charger indefinitely and not harm it.
You could supply 13.6 - 13.8 volts DC to the battery and it would s-l-o-w-l-y charge it. Depending on the depth of discharge, it may take quite a while.

The included charger at "15 volt 5 amp" would charge the battery much faster. It's using a voltage closer to the listed 'cyclic' charge rate.

If you had a connection on the device that went straight to the battery terminals, you could charge it with a cigarette lighter plug connection. Cars usually run 13.8-14 volts with the engine running.

If you wanted to charge it at home, you'd need to find a regulated power supply/wall wart that put out somewhere between that 13.8/14.9 volts.

If you wanted to charge it via solar, you'd need to have a solar panel and a controller that would keep the voltage in that range.

 

[Delivers1234]

does anyone know of a DC trickle charger or solar that does .76amp or less for this battery?

 

[a417]

Here is one on the Amazon.

This one charges at about 200ma (based on the listed specs), so it would take quite some time to charge it...

How much current demand does your device put on the battery? If you had to charge it every day, I'd look for something with a little more chutzpah. If it's something that you only have to charge up once a week, this might be the way you want to go.

 

[Delivers1234]

Thank you. Im not sure how many amps the Mr. Boss uses.

 

[a417]

It can't be many based on the size of that battery.

 

[Delivers1234]

Thank you. So I bought that charger. And what type of other battery to you suggest (not to heavy) with a case? etc that I can keep in the house to charge (safe around kids) and take camping? I have the ft-dr

 

[a417]

other types of battery, or other battery brands?