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...
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.
1400354
You might want to contact the seller Solar-X for a full answer to your question. Can only say I have had this solar panel attached with alligator clips to my 12V marine battery without the controller for a year and a half (boat is in marina in-water over winter January through March and not used for those 3 months) (live on the coast of S.C.). I have a power cut off switch and in April turned it on and the console gauge showed full charge and started the O/B upon ignition. Before purchasing this solar panel I bought a portable battery charger (just in case) and to this day have not had to use it. I credit the solar panel(sans the controller) for that. Hope this helps. You might want to contact the seller Solar-X for a full answer to your question. Can only say I have had this solar panel attached with alligator clips to my 12V marine battery without the controller for a year and a half (boat is in marina in-water over winter January through March and not used for those 3 months) (live on the coast of S.C.). I have a power cut off switch and in April turned it on and the console gauge showed full charge and started the O/B upon ignition. Before purchasing this solar panel I bought a portable battery charger (just in case) and to this day have not had to... » Read More You might want to contact the seller Solar-X for a full answer to your question. Can only say I have had this solar panel attached with alligator clips to my 12V marine battery without the controller for a year and a half (boat is in marina in-water over winter January through March and not used for those 3 months) (live on the coast of S.C.). I have a power cut off switch and in April turned it on and the console gauge showed full charge and started the O/B upon ignition. Before purchasing this solar panel I bought a portable battery charger (just in case) and to this day have not had to use it. I credit the solar panel(sans the controller) for that. Hope this helps. « Show Less
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?
352793
Based on my experience, I think you would need two units. And you would need a maximum power point type of solar battery charger as well. I use two units in parallel to feed a maximum power point type of grid tie inverter and the maximum power that I get, when the sunlight is optimal, is 150 watts. And that is usually less because the sunlight is not always optimal.
367074
I installed the charger on my boat,(near the battery) then installed a Marinco Marine On-Board Charger inlet(also close to the battery) to plug the power in to charge the batteries. I had to cut the ends of the charger off and replace it with a male plug in the on-board charger inlet to plug in the cord to charge the batteries. works great.
1044054
I currently use two of them on my boat. They are great! I run my fridge, Sirius Radio, and Microwave off of one. There have been no issues. I also keep them charged when not in use utilizing the NOCO Genius dual bank system.(http://www.amazon.com/NOCO-GEN2-Waterproof-Battery-Charger/dp/B003JSJS5I/ref=sr_1_1?ie=UTF8&qid;=1430916778&sr;=8-1&keywords;=genius+battery+charger+dual)
38460
I went with 12v battery with solar charger. I made my own out of ammo can instead of buying one. Battery stays full and don't have to keep buying batteries. I used a old charger cord off regular 12v recharger. To hook to unit. Works like a champ. Only way to go in my opinion.
2242774
You need a charge controller pretty much for any solar panel over 10 watts. I like the ones that have a digital voltage meter and built in float mode. Lots of choices for controllers in the $20 range Panel has held up well so far on my sailboat.
221008
The solar charger would work as a maintenance charger only. Which means, the batteries must be fully charged prior to connection of the solar charger.The solar charger will maintain the top charge on the batteries as long as there are no draws on the batteries. The batteries would need to be either wet conventional or AGM type.The 2 batteries would also need to be connected in parallel (pos to pos / neg to neg) so it will be a 12 volt set of batteries.
1402883
Exactly what you need. It's a Solid state trickle charger and will keep your battery at full capacity without over charging and damaging it. Pump amperage doesn't matter, as it will run off the battery in backup situations. This charger only maintains your battery at full charge. Got 2 of them on my boat, work fine.
966785
I use Size #4 Cable between paralleled batteries and between the battery and inverter. (The smaller #6 would be OK, but I like #4.) Keeping batteries charged is important: as voltage goes down, current goes up, and inverter can get a bit hot. I use solar panels (4 x 15 watt=60 watt) to keep my bank of 6 batteries topped off. As long as the battery is OK, charging and using inverter at same time will not be a problem. (Charger may get battery voltage up near 14V during peak charge, but this is better than too low of voltage.)
2115090
I've seen some discussions where there was a regulator required for use with solar chargers in some situations. Had the same issue with my lawn tractor; no charge after 8 hours in the sun. But it works fine for other batteries... go figure. May want to ask someone at your cycle shop about how to use this. And the other responders are right, if your battery is stone dead this thing isn't gonna help you. I found a 6A Stanley charger at Lowe's for $25 to use on the lawn tractor.
467335
You've probably checked on line, but this is a good site to referencehttp://www.chargingchargers.com/tutorials/solar.html25 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.
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....
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
44715
Sorry, I don't know the answer. My boat has a dual battery 12 volt system. I routinely use the batteries (and run the engine) with the charger running.
887419
I would advise against running it in a two batteries to one panel setup. If one battery went bad it could/will cause the loss of the other battery. The charging controller in this unit is meant to work in a one to one relationship to a single battery. Properly wired it could possibly work as a temporary solution. Is it advised? No. Eventually there will be a massive failure when one battery in the circuit has problems and an overcharge hits the remaining good battery. I would suggest a Battery Tender 022-0165-DL-WH. This is a dual battery charger but is not solar powered.