Humminbird 7700281 GCBK CSB GP1272 Portable AGM Battery and Charger

• Works with 343c Portable and 383c Portable units
• Rechargeable AGM battery with charger for portable Humming bird units
• One year limited warranty

An excellent 12v to bring along camping. I do not have a depth finder, but use some 12v devices that have alligator clips. This is a very nice and compact unit that has outlasted our needs many times.

I really like that it included a charger, makes charging easy. I don't know what else to tell ya'll. Looks well made and it works great for all kinds of 12v applications.

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I put this in a cheap tool box and added a few 12V car cigarette outlets for power, solar panel charge controller, speakers from an old set of self powered computer speakers and on off switch. made a portable power unit that can be used with a 12V to AC adapter to power just about anything. Used it when the power went out in San Diego. Also use it when golfing, fishing and car trips. It can power cells phones, camcorders, cameras etc. You can also plug a mp3 player into the speakers for tunes.

I like having a power supply in case the solar panels don't charge the battery all the way. Very cool!

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Battery came fully charged but I put it on the charge over night anyway. I connected it up to my new fish finder and ran it 24/7 for the next 7 days. Before connecting the fish finder I checked the voltage and it read 13.35 volts, 7 days later when I unplugged it I checked it again and it read 11.31 volts. I would say this was an excellent buy!!!

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Not much to say. It's a gel cell battery that works like you would expect. Got it for a Humminbird Piranhamax 170 to install in my kayak. Has enough capacity to run the sonar for a long time with full back light (12 hours and I still hadn't hit the 11 volt mark).

I could have probably went with a smaller battery, as this one seems almost like overkill.

If you want lots of capacity for a gray scale fish finder, you can't go wrong here.

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Product was exactly as advertised, fast shipping. I had a problem with the charger about 2 months after I bought the first one, I emailed Humminbird to ask them how to handle it, the response I got back was, WE ARE SHIPPING A NEW CHARGER TO THE ADDRESS LISTED IN YOUR EMAIL, IF YOU WISH FOR IT TO GO TO A DIFFERENT ADDRESS PLEASE LET US KNOW. WE ARE SORRY FOR ANY INCONVENIENCE. They never asked the first question just sent the new charger immediately I received a few days later.