Stanley BC209 Battery Maintainer

• High frequency automatic battery charger/maintainer
• Magnetic back for easy mounting
• Foldable hanging hook and dual mounting bracket for easy temporary or permenant installation
• Rubber covered metal battery clamps
• O-rings and DC plug

I am using this as a battery maintainer. Seems to work fine. It is a higher quality case and wiring than the Schumacher units I had used in the past. These are a buy again.

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This appears to me to be the same BC209 as the more expensive all yellow version. This one is advertised as a maintainer but the directions and box refer to it as a maintainer/charger just like the yellow version. The paperwork is dated 2011 so it is a up to date model. I bought this to maintain my starting battery in my motor home while in storage which is most of the time. The "house" charger in the motor home only maintains the house battery (not the starting battery)so I was going through starting batteries way too fast from lack of use. The charger does exactly what I wanted which is slow charge then maintain the battery level. The included plug adapters are all nice quality. I chose to use the cigarette lighter adapter and it works great. The light indicates when it is charging and when it is charged. The unit runs without making any noise at all. I actually put my ear to the box and could barely hear a slight hum. From 1 inch away you can't hear a thing! Also there is no odor from the unit either. I could not be happier and highly recommend this product. Now when it is time to travel I can just start her up and go!

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This charger works as good or better than chargers costing 5 times more. I bought 3 of them to use during the winter. Great value!

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The Stanley BC 209 Battery Maintainer is one of the worse battery maintainers that I have used/purchased. The charger gets extremely hot, has wide range in charging voltages (13-15V), and for me, stopped working after 6 months. The overall design is basic and feels cheap.

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Stanley BC209 Battery Maintainer

Im currently trying a Stanley BC209 (black case)trickle charger I bought in the past few months & so far I like the flashing LED for charging & a solid light for charged.

The cables are rather long (good or bad depending on use) but does have a detachable (from the batt) plug.

Its very versatile with its 3 outputs & 3 mounting options.

OTHERs I used (BELOW)

The Schumacher & the Sears chargers look the same in every way EXCEPT for the brand sticker.

Ive had both (2) so called different brands to stop working (with-in 5-10years) but still have a 3rd charger that is still working(in-which was my newest).

I had 2 permanently mounted, 1 in my boat, 1 on my lawnmower & the 3rd one I made removable from my jet-ski.

As for the short cables (AC & DC sides) I liked & disliked the lengths depending on the mounting location LoL.

Over time things I noticed was;

1)one half of the plastic had cracked in half on the one on my lawnmower.

The green LED was on & the red LED would just flash & not charge.

2)the green LED stayed on but would not charge (no steady red light) on the one in my boat.

I read in the reviews about someone not loosing fluid level in there battery from charging BUT I noticed (over like 2 winters) I would have to top off the fluid levels back off in the battery's the following spring ("in which was normal").

I ended up using a timer to activate my chargers through the night to try & reduce this fluid level drop but did notice when I dropped power the green LED would stay lit using the batteries power.

Schumacher SE-1-12S Fully Automatic Onboard Battery Charger 1.5 Amps