Have two batteries in my boat to "maintain" with a Solar Tender. 1) Do I need your 10 or 15W charger? 2) How can I hook it up so the charger charges both 3) I need a "quick disconnect" part since the batteries are in the bilge, that can hook up both batteries. What do you recommend? Have two batteries in my boat to "maintain" with a Solar Tender. 1) Do I need your 10 or 15W charger? 2) How can I hook it up so the charger charges both 3) I need a "quick... » Read More Have two batteries in my boat to "maintain" with a Solar Tender. 1) Do I need your 10 or 15W charger? 2) How can I hook it up so the charger charges both 3) I need a "quick disconnect" part since the batteries are in the bilge, that can hook up both batteries. What do you recommend? « Show Less
577129
If the batteries are connected parallel one charger will charge both. Lots of variables on the 10 or 15 question so get the 15 . It comes with ring and alligator clips with a quick connect included. The 15 watt keeps my two battery set up on my RV fully charged.
577130
Most boat batteries are deep cell which may need a different charge rate than this unit can provide. Contact your boat battery manufacturer for specific charging specs. If you can use this battery tender then you can only charge one battery at a time. You also cannot leave it connected all the time it will over charge the battery after the green charged light comes on. Amazon should sell the Battery Tender quick disconnect lead that will work with this charger. It has 2 large eyelet ring connectors to the battery a fuse and a plug to the Battery Tender Lead.
1263634
I added a second battery, it is simple and adds needed security when out on your boat if one battery goes low, also I used old car battery cables from the salvage yard, much cheaper, just get your lengths measured first....
325755
I'm not entirely sure, but the total charging output for two batteries is 10 amps. I would say a generator output of 1150 watts (amps times voltage = watts) would be needed. The on-line manual may show a more specific information. I don't have easy access to my manual right now since it's with my boat which is in storage right now. I will say that at full charge to both batteries, the unit does get very warm, thus the large heat sink fins built into the case. This is a well built, solid unit. I have had no problems with it. I hope this helps.
1425076
I will answer as complete as I can for you. Can you make a wire run with jumper clips on it That can attach to your boat battery and to a terminal on the wall inside of boat house and attach the solar panel to that no more then 8-10 ft. The panel comes with several different types of connectors for the panel end good luck it should be easy to do ?
1991342
This is a great battery maintainer for long term. Remember though the batteries must have a charge in them before this will maintain them. It will not charge a dead battery. Since I have purchased mine this past summer, I have never had to place the battery charger on the cart. This will keep the batteries charged and maintained as long as the batteries are not dead or you have a bad battery in the series. If we use the cart all day and charge gets low it may take more than a day to get full charge back but this unit is better for the batteries as it is a slow charge and maintains the life of your batteries so if you do not need to use the fast charger to charge, your batteries will last a lot longer. This is a great battery maintainer for long term. Remember though the batteries must have a charge in them before this will maintain them. It will not charge a dead battery. Since I have purchased mine this past summer, I have never had to place the battery charger on the cart. This will keep the batteries charged and maintained as long as the batteries are not dead or you have a bad battery in the series. If we use the cart all day and charge gets low it may take more than a day to get full charge back but this unit is better for the batteries as it is a slow charge and maintains the life... » Read More This is a great battery maintainer for long term. Remember though the batteries must have a charge in them before this will maintain them. It will not charge a dead battery. Since I have purchased mine this past summer, I have never had to place the battery charger on the cart. This will keep the batteries charged and maintained as long as the batteries are not dead or you have a bad battery in the series. If we use the cart all day and charge gets low it may take more than a day to get full charge back but this unit is better for the batteries as it is a slow charge and maintains the life of your batteries so if you do not need to use the fast charger to charge, your batteries will last a lot longer. « Show Less
566231
Those chargers are meant to "maintain" a charged battery. They don't do much to charge a discharged one. Get a small charger and hook it up to the battery to keep it charged. I use a Deltran Battery Tender Plus on mine. I leave mine both hooked up at the same time. If totally discharged, you may have to use a car battery charger to get the battery recharged. Periodically hit the test button on your pump to make sure the charge is holding.
862512
I would add to my previous comment that you would want to bring them to full charge with charger and use the BatteryMinder only as a maintainer/desulfator. They should all be in similar condition. If you find one 12v pairing has a lesser condition, I would suggest desulfating the pairs separately, spending more time on the weaker pair. From what I understand, desulfating a bank in series/parallel will tend to favor the batteries that are in better condition. You can make a Kentucky windage determination of condition by measuring resting voltage or be more precise by measuring specific gravity of each cell. I would add to my previous comment that you would want to bring them to full charge with charger and use the BatteryMinder only as a maintainer/desulfator. They should all be in similar condition. If you find one 12v pairing has a lesser condition, I would suggest desulfating the pairs separately, spending more time on the weaker pair. From what I understand, desulfating a bank in series/parallel will tend to favor the batteries that are in better condition. You can make a Kentucky windage determination of condition by measuring resting voltage or be more precise by measuring specific... » Read More I would add to my previous comment that you would want to bring them to full charge with charger and use the BatteryMinder only as a maintainer/desulfator. They should all be in similar condition. If you find one 12v pairing has a lesser condition, I would suggest desulfating the pairs separately, spending more time on the weaker pair. From what I understand, desulfating a bank in series/parallel will tend to favor the batteries that are in better condition. You can make a Kentucky windage determination of condition by measuring resting voltage or be more precise by measuring specific gravity of each cell. « Show Less
1498178
Most boats will have a battery selector switch. #1 battery, #2 battery, Both batteries. If you do not have a selector switch this can be used to charge both batteries while the engine runs, but with the engine off you can draw down one (stereo, trolling motor, etc.) while still not affecting your ability to start with the other battery. How the batteries are wired (in parallel) will determine how your system operates. To use this relay you need to split the system, for example 1 house battery, 1 starting battery. The manual switch will still give you more control over your system, if you remember to use it. Most boats will have a battery selector switch. #1 battery, #2 battery, Both batteries. If you do not have a selector switch this can be used to charge both batteries while the engine runs, but with the engine off you can draw down one (stereo, trolling motor, etc.) while still not affecting your ability to start with the other battery. How the batteries are wired (in parallel) will determine how your system operates. To use this relay you need to split the system, for example 1 house battery, 1 starting battery. The manual switch will still give you more control over your system, if you... » Read More Most boats will have a battery selector switch. #1 battery, #2 battery, Both batteries. If you do not have a selector switch this can be used to charge both batteries while the engine runs, but with the engine off you can draw down one (stereo, trolling motor, etc.) while still not affecting your ability to start with the other battery. How the batteries are wired (in parallel) will determine how your system operates. To use this relay you need to split the system, for example 1 house battery, 1 starting battery. The manual switch will still give you more control over your system, if you remember to use it. « Show Less
739384
I have a factory slow charger and a quick charger with 5 batteries. So swapping out batteries is no issue with my small yard. But if you have no tools already using the 18V B&D;, best go with a newer model with better battery life.
908636
The Blue Sea is designed like a battery tender, it charges the main (engine starter) first. When the main is charged it will start charging the auxiliary battery. If you run your auxiliary battery a lot (accessories) then you will need to run the engine for quite a while to recharge or use a separate battery charger (110 volts). My suggestion is to install a small solar charger to help keep the auxiliary battery charged while using your boat and it will also charge up and keep charged your battery when not in use. This products does what it's supposed to do.
467337
You've probably checked on line, but this is a good site to reference http://www.chargingchargers.com/tutorials/solar.html 25 milliamps is really small, and may not generate enough watts to bring the controller into play. I connected the controller to a largish solar panel, output approx 20 volts, for keeping my boat battery topped up.. the combination seems to work well at this level. Hope this helps.
365286
I don't know that. I always go out on a full charge and added wiring to my boat battery so a cigarette lighter power adapter can be hooked up to the battery. then to go from cigarette lighter adapter to the ICOM unit with that style cable that came with it. I also added a 2nd battery to my boat to make electrical things dependable when I run my lil 18 footer out 10 mi or better from shore. The radio is nice but I really don't want to have to use it.
1421452
It works fine for any size battery. A slower charge is better for the battery as it creates less heat. If you are not in a rush this will work fine. For your battery, it will take it from a state of charge of 50% t0 90% in under 5 hours and will have it topped off by 7 hours or so. I like this charger so well, I'm buying two more. One to put a winter maintenance charge on all my equipment batteries, and one as a permanent install on a car. I have the 10 Amp version which I'm also very pleased with. I use in to charge my boat battery which is a little small but I'll be swapping it out for two larger batteries. It works fine for any size battery. A slower charge is better for the battery as it creates less heat. If you are not in a rush this will work fine. For your battery, it will take it from a state of charge of 50% t0 90% in under 5 hours and will have it topped off by 7 hours or so. I like this charger so well, I'm buying two more. One to put a winter maintenance charge on all my equipment batteries, and one as a permanent install on a car. I have the 10 Amp version which I'm also very pleased with. I use in to charge my boat battery which is a little small but I'll be swapping it out for... » Read More It works fine for any size battery. A slower charge is better for the battery as it creates less heat. If you are not in a rush this will work fine. For your battery, it will take it from a state of charge of 50% t0 90% in under 5 hours and will have it topped off by 7 hours or so. I like this charger so well, I'm buying two more. One to put a winter maintenance charge on all my equipment batteries, and one as a permanent install on a car. I have the 10 Amp version which I'm also very pleased with. I use in to charge my boat battery which is a little small but I'll be swapping it out for two larger batteries. « Show Less
149307
You need to have a battery and electrical system for the boat. If you just have a 12volt battery, it will work until the battery discharges. You will need some kind of recharging system (boat motor, outlet near dock, solar panel).
107410
The solar charger only maneges the DC power from 20 volts down to 13.5 dc from your panels for better charging of the battery..(it all depends on the solar panels you bought).So this will either maintain or charge the battery on your 5th wheel or you can buy a separate marine battery to hook up to the inverter..It is only the inverter that converts it to AC power the panels or charger will not do that..Hope this helps?
908635
Yes. I separated my batteries for one to crank the motor and one to run house accessories. When the motor starts, the cranking battery gets charged first, then when 13.2 volts or so are reached the relay turns on and charges the house battery. At this point both batteries are being charged at the same time. My boat has a 70amp alt on it and the system works great. Pain to install but well worth it. Hope this helps. ~ Robert
1213001
Best to charge the battery with a battery charger, and "Maintain" the charge with the battery tender. If you have a large battery, it could take quite a while to charge it with the battery tender.