There is no setting choice for charging a deep cycle battery, contrary to the manual supplied; choices were Standard, AGM, Gel, &amp; 6v; which should be used? The manual picture shows Deep Cycle in the same position as AGM on the unit itself. I contacted...
1314007
I also noted that deep cycle was left off these units , I have found that using the standard position on deep cycle will go to desulfate mode on deep cycle when determined by the computer. since the computer is evaluating the connected battery as it is charged I just assumed the company decided it was not necessary to have another position. if this is the case they should have included a note with these units.
1369211
Standard battery tenders are not designed to work with hi-performance AGM-type batteries. The Optima charger allows you to select which type of battery you are charging.
912506
...good question. I've been in the battery business for almost 20 years and run an engineering consulting business focused solely on batteries. A good rule of thumb is never mix battery types, and also match your date codes. The goal is to have the batteries age at the same rate, so they contribute to your load equally over time. Also expose all the batteries to the same temperature, so thermal gradients don't develop, and cause long-term imbalances due to the hotter batteries aging at a faster rate. If you mix AGM and Gel, they will age at different rates and their internal impedance varies initially and even more as the batteries age. This aging is accelerated because each battery won't be charged correctly since each type requires a different charge profile. The batteries with the lower internal impedance (AGM) will take the burden of the load and tax them causing shorter cycle life...
1334081
Works good on my trolling motor battery (Deep Cycle). It has kept it charged all summer. I keep it plugged in all the time. No issues.
830118
It has settings for different kinds of batteries: the "High Performance AGMs" like the Optimas, and what they call "Standard Flooded and AGM" batteries, which I figure must mean regular old parts store lead-acid batteries.The thing is actually kinda cool (and expensive) because it is both a charger and a maintainer.
780567
No, you do not. It is recommended to install an AGM type battery with this excellent alternator but, not necessary. Any excess current is shunted away from the charging circuit. Same as with your original battery which also over-produced at higher RPMs.
1630719
I had my Son in Law to hook ours up, and as I understand it, it switches back and forth charging which ever battery has the lowest power. We are also using a straight deep cycle battery for house battery and a Rv starting/Deep Cycle on motor side. These things are the cats meow when you are on the water and drain your starting battery down. Lines Taut, GUY
615667
I've read where the agm batt can be charged by this charger when connected in parallel with another conventional battery. I also know that there are agm battery chargers available. I suggest that you look up the charging of the agm on youtube. Someone has probably already solved this type of problem. Cheers.
694649
I'm not sure it's that critical. I picked up a Walmart standard deep cycle (which isn't really deep cycle), and it works fine - SO LONG AS YOU TOP OFF THE WATER - Every month two two at the MOST. Sorry to yell. But their battery charging "routine" is so messed up it drives me crazy. I'd probably buy a different unit if I was going to do it all over again. The damn charger runs an absorption phase 2-3 times per day.
2016411
Mr. BuddyOlPal I did a little research on your question, first the term "dry cell" is a little misleading for this battery, it is actually a AGM design Battery, which means it is a glass mat and not a true "dry cell"...that term, belongs to batteries like AA AAA C D Batteries. According to the battery manufacturer... Any conventional battery charger or alternator up to 15.2 volts and 25 amps will be sufficient....However I would not use a charger that high for that type of battery, I would use a lower amperage, say something from 2 -6 amps would be better.....The smart charger does not supply that kind of current, it is only for a charged battery and to maintain it while it is not being used....I installed a AGM battery as a second battery in my 4 wheeler and this battery maintainer worked really well for that purpose, so if your battery is ok and charged, then it should work just fine...
1404402
vA=w(Volts)(amps)=watts. Regardless of AC or DC. And lead acid batteries work fine, just use a true deep cycle battery like a 6vdc "golf cart" type battery. These are much better than Marine deep cycle. Just make sure your input DC volts matches the units input parameters. The main issue is the battery charging. Lead acid has a different charging parameter than whatever is in this unit... sealed agm probably. Just bypass the charging circuit and add an appropriate charge controller. There are many good ones on the market.
1775564
On pg 13 of the English section of the manual it says "All types of lead-acid batteries (Wet, Maintenance Free, AGM and most GEL)." On the cover it says "For lead-acid batteries 14-150 Ah". It repeats that restriction in the IMPORTANT SAFETY INSTRUCTIONS and adds "do not use for any other purpose." In the PERSONAL PRECAUTIONS section, it says "Use charger for charging a LEAD-ACID battery only." If I were you I would check the CTEK website and look for a different charger, send them an inquiry, or call them. It appears to me the answer must be no. But I am no expert. On pg 13 of the English section of the manual it says "All types of lead-acid batteries (Wet, Maintenance Free, AGM and most GEL)." On the cover it says "For lead-acid batteries 14-150 Ah". It repeats that restriction in the IMPORTANT SAFETY INSTRUCTIONS and adds "do not use for any other purpose." In the PERSONAL PRECAUTIONS section, it says "Use charger for charging a LEAD-ACID battery only." If I were you I would check the CTEK website and look for a different charger, send them an inquiry, or call them. It appears to me the answer must be no. But... » Read More On pg 13 of the English section of the manual it says "All types of lead-acid batteries (Wet, Maintenance Free, AGM and most GEL)." On the cover it says "For lead-acid batteries 14-150 Ah". It repeats that restriction in the IMPORTANT SAFETY INSTRUCTIONS and adds "do not use for any other purpose." In the PERSONAL PRECAUTIONS section, it says "Use charger for charging a LEAD-ACID battery only." If I were you I would check the CTEK website and look for a different charger, send them an inquiry, or call them. It appears to me the answer must be no. But I am no expert. « Show Less
2144431
You can use the battery, but it may not be a deep cycle. If the battery is for starting a gas operated mower it is not. If you are going to have a load that discharges the battery to low levels, it is better to have a deep cycle. I use an old car battery to run led lighting in my storage shed at night, but the battery never gets discharged very much, and to keep my deep cycle batteries for my camp trailer charged during the winter.
700707
only has 2 voltage settings gel cell which i think is 14.1 volts and lead acid or wet cell batteries at 14.5 volts which is the right voltage for deep cycle marine batteries. I'm running 2 deep cycle marine batteries and it works great. with two 120 watt solar panels I have seen 17.3 amps coming in. at 14.5 volts that's about 250 watts gotta love it. This is a great controller for anyone with a small solar panel system, it's not a mppt controller but it's also 1/5 the price. I got it before it was on sale paid $130 and it's still well worth that. I'm not going to complain I have been using it for 6 months and have no complaints. see my photos.
1633859
the unit calls for a marine deep cycle battery, car battery is designed for cranking amps and than your car runs off the alternator. Deep cycle designed for longer term use with out a charge.
1456453
I would say yes to deep cycle battery charging,no start mode.it won't charge a completely dead battery,it has to have at least 7 volts I think.i thought that was odd but that's the way it is.
2068243
Section 2.8 of the manual says "Use the charger for charging only 6 and 12V LEAD-ACID, GEL and AGM-type rechargeable batteries with recommended rated capacities of 12Ah (6V) and 5-33Ah (12V). " My first attempt at this was a ProSeries PSC-15A-OB which, while a nice little charger, was NOT specified for use with AGM/gel. So I am now replacing with the SE-1-12S-CA. Oh, yeah, and a replacement battery too :-( You should call Schumacher if you have doubts; 800-621-5485 M-F 7-5 CDT.