Is anyone using this to charge a battery larger than 72 amp hours? If so how is this charger working out for you?
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
1421453
It works fine charging and maintaining my 105 amp hour deep cycle trolling motor battery. With only 6 amps max charge rate, I believe that charging is easier (with less heat) on the almost 4 yr old battery, yet it is fully charged overnight.
1421454
I use it to charge the cranking battery in my boat. It does a good job of bringing it up quickly. The guy I get my batteries from is adamant about unplugging the charger once the battery 's up; he's uncomfortable allowing it to float charge. Says he's seen a lot of batteries that get cooked dry when you leave the charger on all the time, even if they are designed to maintain the battery. Not sure about that, but I do it anyway.
1421455
We use this charger for a very wide spectrum of different batteries. Are applications are all commercial, and the batteries and chargers last years without any issues.
1276507
5 or 6 hours for a 100 Amphour battery or faster if you use the 120 AC to run a 15 - 20 amp battery charger which I prefer
1662462
The amperage is too high on the charger for this battery. I would recommend you to use a 2 Amp charger.
2126783
THE REGULAR CHARGER TAKES A COUPLE OF HOURS AND CAUSED ME A TIME PROBLEM. I ordered a couple of new battery's and a new 30 min. charger and solved my time issue.That way i always have a charged spare plus one on the charger. Works out very well. thanks
1931507
I keep mine on a Schumacher Smart Charger 24/7 and its been sitting for over a year on that charger. Used it as a battery backup system in a simulated "black out" scenario last weekend. Ran 5 light bulbs, a HAM radio, and charged electronic devices off of it. Pulled very little voltage and after running it for hours the monitor I use still showed an full charge. All that to say, the battery seems to be holding at peak efficiency.
324924
I have had this charger hooked up on a dead battery, at 50 amp setting. After a few minutes charge, I tried it. It did not burn up, but 50 amps will not crank an engine. It takes about 450 amps. Let it charge a few minutes, then try again.
1106915
With the old style charger this type uses, I would think not. However, I have a power strip with a timer I use on all my chargers. I have it set for about an hours charge each day. This way everything is charged and ready to go with no over charging. Seems to work well for me and some batteries are several years old.
459057
Charging at 25amps I do not think it would charge a large fork lift battery overnight. If your forklift is used occasionally and you keep it plugged up to the charger when not in use it should work fine.
454681
I would not recommend extended use on the AGM batteries. It's OK to use on occasion if you need a quick boost. The charging profile on a lead acid battery and an AGM battery are different and over time this charger could shorten the service time/life of an AGM battery.
2259696
switching back and forth between 5 watts and 15 watts did it for me.actually, I bought it for my motor home so i can recharge my dead battery so i can start the engine periodically.It is the best charger i have owned. even if you are stuck in the 70-90 % range, it only takes about 3 hours to charge the dead battery enuf to start my rig.my battery is a 800-1000 peak battery
636596
Yes, I charge mine with this charger, only takes a couple of hours per battery.
2214985
I believe like one of the other responses here, the larger size (3 amp) will be better for use if you do not want to use it as a maintainer. I too have found the newer smart chargers do a better job charging even though they are not excessively high on amperage rating. I have actually been lucky enough to save older batteries by using these charges and allowing them to charge very slow over several days.
386161
Anyone crack one open and see if this is anymore than a transformer and a couple diodes or is it an active charger that dials back the voltage or current when the battery is charged? Thanks. (I know it's only $8, but still wondering)
1008860
7.2V - should last 90 minutes on a charge (one of the reasons why I purchased this)
2094784
It is a small charger for a small battery It will charge a bigger battery but will take a long time .I would get a bigger charger.
2128630
No. This charger will continuously charge so after no more than 24 hrs. You will want to unplug the charger to prevent over charging. Hope this helps.
1056172
I went to ebay and bought a half dozen of the highest Mili amp hour (mha) batteries I could find (bought the GOLD ones cheap) and a couple of plug-in-the-wall chargers cheap. They work great and you don't have to keep your computer plugged in for four hours or more to charge the batteries. The plug-in-the-wall chargers have a light that glows magenta while charging and turns blue when done. I use the radio quite a bit and this works for me. I always have a few charged batteries. Recording time on the highest setting with fully charged batteries usually runs around 7-8 hours There was probably a fit issue for any kind of AC adapter circuit in the radio. I went to ebay and bought a half dozen of the highest Mili amp hour (mha) batteries I could find (bought the GOLD ones cheap) and a couple of plug-in-the-wall chargers cheap. They work great and you don't have to keep your computer plugged in for four hours or more to charge the batteries. The plug-in-the-wall chargers have a light that glows magenta while charging and turns blue when done. I use the radio quite a bit and this works for me. I always have a few charged batteries. Recording time on the highest setting with fully charged batteries usually runs around 7-8 hours There was... » Read More I went to ebay and bought a half dozen of the highest Mili amp hour (mha) batteries I could find (bought the GOLD ones cheap) and a couple of plug-in-the-wall chargers cheap. They work great and you don't have to keep your computer plugged in for four hours or more to charge the batteries. The plug-in-the-wall chargers have a light that glows magenta while charging and turns blue when done. I use the radio quite a bit and this works for me. I always have a few charged batteries. Recording time on the highest setting with fully charged batteries usually runs around 7-8 hours There was probably a fit issue for any kind of AC adapter circuit in the radio. « Show Less