I have a small 12V SLA battery (FM12180, 18Ah); almost depleted, for some reason the charger is always on float. Is that normal?
484055
Whoever posted the first answer, original poster did say the battery is depleted. Pay attention.To the OP: perhaps your battery is too small to be charged with a larger current.
484056
Learn to Read. Then read the instructions. Float means that the battery is fully charged.
998697
If you use it as a stand-alone, charge it after each use. I like a float charger, leave it plugged in all the time, no damage. Simple trickle chargers can shorten their life.
1099959
How old is your Sea Doo? Put a volt meter on the battery and see if it has 12+ volts, then put it on the charger and see what it shows. Sounds to me like a bad charger or a bad battery. Also check where the charger wires from the connector attach to the battery, they could have come loose or never been attached properly.
60086
I havent had any issues with the charger draining the batteries Ive left it unpluged for 6 weeks and didn't lose a volt on my guage. You might want to check to see if anything else might be draining you batteries its uncommon for a charger to do that.
2190133
Once the batteries are full the charger will continue to trickle charge at around 12mA. I've left batteries for a couple of days no issues, I don't know what happens after a week though
1943365
I noticed that as well. My old one was heavy. New one light. So, probably a more updated "solid state" charger. Voltage output is a little higher than my old one.
862511
It is a very good charger, i us it on only one 12v battery currently, but i see no reason why it would not maintain the charge on your batteries as long as they are hooked as a 12v system, i am sure it would be more effective it you did one at a time and cycled them through
1382577
The battery is most likely "de-capacitated," meaning it has lost energy storage capacity. Charging the battery before it is fully discharged usually causes it to lose more and more space. Additionally, I learned that one must use the correct charger that carries the specified amps to get a thorough charge. Using any charger that fits doesn't always work.
1793838
"Float/maintenance charging" is that voltage is continuously applied to maintain the battery in a fully charged state. This is not the case for this unit, since it is not specified or implied in the Instruction Manual. To properly maintain this unit, it is recommended that it be charged (w/switch in the OFF position) "immediately after each use, and once a month if not used. Failure to do this may," WILL "reduce the battery life dramatically." I have had other boosters that, when not maintained this way, lost complete charge and could not be recharged of restored.
101131
Are you using lithium batteries? That usually happens when the battiers are low.
1013499
It's a nominal 12V battery. Charging voltage is higher than 12V, but typically less than 14V. The 14.4V peak for your battery must be max charge voltage. I think your Yuasa charger work OK with your marine battery if it's an electrolyte battery, but I would use it only to maintain a charge on the fully charged marine battery because of the low charger amp output. I wouldn't use the charger with a gel or AGM battery without checking with a battery rep. The following is from the web: Bulk Charge Voltage The Bulk Charge Voltage of typical liquid electrolyte batteries should be about 14.4 VDC; AGM batteries about 14.2 VDC; gel cell batteries about 14.1 VDC. There is no one correct voltage for all types of batteries. Incorrect voltages will limit battery performance and useful life. Check your battery maker's recommendations. Float Voltage The Float Voltage settings should hold the batteries at a level high enough to maintain a full charge, but not so high as to cause excessive "gassing" which will "boil off" electrolyte. For a 12 volt liquid electrolyte battery at rest, a voltage of 13.2 -13.4 is normally appropriate; gel cells are typically maintained between 12.9 and 13.1. If the batteries are being used while in the float stage, slightly higher settings may be required.
451224
i have 2 batterys in my boat 1 keeps a charge pretty good other dosent it was almost dead and charged it up will take a charge but still dosent hold it this charger dose charge it up and maintains it
2158788
my battery is a Slider 12v that I use on it But, charger keeps Knocking off before it is finished charging. You have to keep turning it on and off for it to charge again.
309110
I am not sure. I am not at home at the moment, but I think that it means that the battery is fully charged and is now working as a maintenance charger. Just keeping the battery at full strength.
728422
I used a volt meter and it went into float of 14.2V and dropped to 13.2 and went back to 14.2 and again dropped to 13.2V. That seems to be the float cycle. It did charge the battery for awhile with a slow rise before it went into float. I was using a 30W Renogy mono solar panel. I have 2 of these and they both work as described. I would not leave them on once the battery is full, and it goes into float, for too long. Batteries can be overcharged. I hope this helps, I did a review on youtube with the 30 W panel, showing the float.
1193130
I am not sure why it does it, but mine does it occasionally also. One thing you can check is to see what Amp hour you have it set for, It seems that when mine shows that I have had the Ah set wrong and it is showing that because I have had it set to a higher Ah battery than what I actually had. The battery will only take so many amps before the resistance gets too high and charge shuts off. If you have a 100 Ah batter and have the meter set to 200 Ah, The meter will show half full when the battery is full and the charge shuts off or goes into float mode from the controller. That is where I would look first. Make sure that you have the meter set right with the battery you have and then if it still shows 60%SOC you may have a bad one. But After I changed my settings, the meter seems to be reading correctly. It has actually gone to 100% Hope that works for you!
1108738
The charger is identifying whether the batteries are appropriate. It should begin charging in a steady light if the batteries are deemed appropriate. It will not charge just any battery.