1.0 ampere output. 13.8 volts regulated charge limit. This unit is good for 100 amp hours worth of batteries. IMO the voltage is a tad high for a high antimony RV battery with temps 60F or higher but an inline 3 amp shottky diode will fix that in a rush (13.5 volts).This is a good, reliable far east company I've dealt with many times. No chicanery. They send items via China Post, no shipping charges.This is a reliable completely inexpensive way to maintain a number of batteries stored for the winter. I would recommend substituting cheap auto parts store battery charger clips for the alligator clips.Sorry. I just cannot afford half a dozen fifty dollar battery maintainers.http://www.buyincoins.com/item/25902.html

The price is definitely right.I think I'll try a couple.Thanks for the info.

I might add this is a switch mode charger that uses about 70 percent less wattage than the harbor fright style transformer type float charger to maintain a battery.

Hi Mex,Nice find. Will it work with an AGM?

13.8 should be just perfect for an AGM.

Someone buy it and let us know. I bought something very similar looking from HF, and it ended up going way up in voltage over time.

Very Inexpensive Battery Maintenance Charger | Good Sam Community

gbopp
Explorer
Oct 19, 2014
The price is definitely right.

I think I'll try a couple.

Thanks for the info.
MEXICOWANDERER
Explorer
Oct 19, 2014
I might add this is a switch mode charger that uses about 70 percent less wattage than the harbor fright style transformer type float charger to maintain a battery.
pianotuna
Nomad III
Oct 19, 2014
Hi Mex,

Nice find. Will it work with an AGM?
pkunk
Explorer
Oct 19, 2014
13.8 should be just perfect for an AGM.
Snowman9000
Explorer
Oct 19, 2014
Someone buy it and let us know. I bought something very similar looking from HF, and it ended up going way up in voltage over time.
MEXICOWANDERER
Explorer
Oct 19, 2014
"Somebody ELSE (or in addition) buy it"

EDIT

Mine works great. A better gizmo than the Harbor Fright transformer that is 20% LESS powerful.
ol_Bombero-JC
Explorer
Oct 21, 2014
Snowman9000 wrote:

Someone buy it and let us know.

Hmmmmmm -

$5.85 is going to break you....or....

you don't trust MEX.......or......

you didn't read his post????....:h..:S

~
Dave_H_M
Explorer II
Oct 21, 2014
I am gonna stick with my Deltran Maintainers.

I been just plugging them in and forgetting about them during the winter for years.

I know - hard headed, but it is not broke and I ain't gonna fix it.

I have to admit that is a heck of a deal you found.
MEXICOWANDERER
Explorer
Oct 21, 2014
The Deltran and other high dollar battery maintainers are excellent. IMHO it would be foolish to substitute a cheaper maintainer if the original was working fine. But I have a large number of batteries to maintain and at 50 dollars a whack I simply cannot afford the premier maintainers.
2112
Explorer II
Oct 22, 2014
My HF maintainer holds at 13.65V.
Is that too high for a long term float on a flooded battery? As long term I mean about a month.