Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Can I leave it hooked up to my batteries 365 and plugged in?  I'm worried about frying by batteries.
Document: I have two 12V batteries for a 24V trolling motor that I leave the charger hooked up to. I use the motor during the day and charge over night and it's ready the next day. I haven't taken it from less than a 1/4 charge in the battery. It's charged over night through heavy rains with no problem. As far as I'm concerned, this is the way to go over the "standard" battery chargers that I could never leave outside over night with any confidence. Price was reasonable.
I have one of these on my two trolling deep cycle batteries and use it a lot. It is still working great and I have no reason to replace it. I am looking for a small battery charger to put on my cranking battery and thought I would leave a review for this charger. My next one will be a 3 bank and will defiantly be a Guest!
This charger does not overcharge and even salvaged one of my old batteries and brought it back to full power. The other battery was seven years old and would only charge up to about 8 volts DC with a float charger and I replaced it before the new Guest charger arrived. So the guest charger didn't have the opportunity to revive the battery I replaced. I have had the charger for four months and leave it powered all the time at the dock. It shuts off automatically and my batteries are always topped off.
These things are a must have on a boat. I bought a Cabelas' Pro-Mariner unit that didn't last a month, disgusted at best. Due diligence caused me to purchase this Guest model. Spend the extra bucks and get a charger that'll last. To say that I'm extremely pleased is an understatement.
I purchase a competor's charger that lasted only 1 year, most dissappointed, for sure. So, I purchased the Guest, have used it through the 2010/2011 New Jersey winter and it performed as I needed it to each time. It was an easy mount as well as electrical hook up. Simple operation with only two LEDs to interpret and I'm happy with this item.I would recommend this product.
I'm very happy with them!
shipped promptly. Hooked up to my boat. It worked perfectly. Easy hookup ;in my 30 ft.  S2 sailboat. Used to charge 2 batterys. and floats them at a voltage that doesnt over charge the batterys when at the dock.
Hooked this charger up in about 30 seconds at 3:00 in the afternoon (running 10 amps) and my near dead deep cycle marine battery was charged the next morning. I'll definitely be mounting this permanently. Left it out in the rain today to make sure it's waterproof...and it is.
Keeps my two tow trollers charged without the hassle of lugging the charger around when I'm camping/fishing. After more than 12 years, my original Guest bit the dust ...this should keep me charged for another 12 ....
Charger is well built and the tech support ( mfg support, not seller) is great. You CANNOT charge a 24 volt system with this unit. You can only charge 12 volt with either output. If your system is 24 volt made up of two 12's hooked up for 24 then you can charge each battery but if your system is 24 volt it will not work.
Answer: yes