is the 155ah rating at 20hrs? How is that possible with battery this size? Thought you'd have to get a 4D size battery for that kind of amp hours.
1948720
We are using these batteries to power LED lights in a semi trailer, being used to haul Marching Band equipment to competitions and football games. We have very bright LED lights installed (3 strips that consume about 11amps each, and 4 floods that consume another 10 amp hours. With all that, I can theoretically keep all the lights on for about 12 hours. I have not tested this to failure, but have kept all the lights on for roughly 5 hours, with no issues. We have a solar panel that charges the batteries all week (between band and football events), and then we use them on Friday and Saturday events, so far so good! Brent Jensen
225642
Probably the Amps specs is my guess, i think one is 1.2Ah and the other is 1.5Ah
471750
Yes 20V is all that matters. You can use any 20V Dewalt battery with any 20V Dewalt tool. Still the amp rating directly determines how long the battery will last. So using 1.5AH battery will only drive half as many screws/bolts compared to a 3AH battery before the battery is dead but it will still work.
1216958
The AH rating is a measure of how long the battery will last, i.e., its capacity. As long as the voltage matches this will work. If your present battery is a 5Ah battery and you replace it with a 4Ah battery, the battery will expend its charge slightly faster than if you had a 5Ah battery. Likewise, it you installed a 10Ah battery, it would last twice as long as the 5Ah battery. FYI, typically the price of a higher Ah rated battery, the more the cost.
1571550
Mine replaced a 12 18amp hour battery...works well. Mine is in a formula race car, so It's not driven every day like a motorcycle or ATV. I bought mostly for the weight savings, but it's a great little battery. Hope this helps
619154
Better in that mine was 4.0 amp hours capacity but was sold as 3.0 amp hour. I tested it and the capacity was better than my Makita batteries. Worse in that the new Makita batteries use cell balancing and draw power from all the cells for the internal chip. These generics do not allow cell balancing and draw power from only two of the cells. And these are a bit tight on the fit to some Makita tools.
2089256
This is a bolt-on type connection battery. An 18Ah battery may be used if you have the additional space for the larger size. Amp Hours for batteries equates to Capacity for fuel tanks. The higher the amp hours, the more "fuel"; the longer the battery may operate before requiring recharging. I have personally added batteries to increase a 35Ah system to 70Ah which considerably increased the range of an electric vehicle.
160212
Mark: This company markets internationally. I am in the US and have 60 hz. I would go the web site and check, but I think that there may be a switch on the unit for either. I have found this unit to be highly reliable. I have been using it for a year and my batteries have been maintained at 13.7 V to 13.9 V. I am using the old standard lead acid batteries on a sailboat and charge a bank of 3 of the deep cycle batteries. One bank shares one 10 amp feed and the battery I used as house battery has the other channel. It is important to install the battery charger with stand-offs about 1.5 inches from the bulk head to allow circulation of air for heat dissipation. This unit has been reliable and trouble free. It has been on line 24/7 now for over a year. Hope this helps. James D.
1803730
Yes, all SLA batteries can handle almost any load. 10 ah means that you can draw 10 amps for 1 hr or 20 amps for 1/2 hour and even 50 amps for 20 minutes. If you only operate a 12 volt 30 watt flouresent fixture, the battery will be at full brightness for 4 hours. (12v x 10 ah /30 watts = 4 hr).
1226337
4D is correct. I have used the bike for over 50 hours now and am still on the original set of batteries. The power adapter for this bike has a short cord so it is inconvenient for some people. If you only use the bike 3 or 4 hours a week or want to be able to move it around easily just go with the batteries.
1081868
This is a 12V battery, but for running even a small winch that still pulls ~40 amps I'd go for a bigger battery. This one is rated for 18 amp-hour (hinting it'll supply 18 amps for 1 hour, or 9 amps for 2 hours, etc) and I don't think it's a good idea to pull more than that 18 amp rating for more than a few seconds (like to crank a car).
165241
It is rated at 9.5Ah. which I believe stands for amp hours. The battery works very well.
687595
You are mixing watt hours with milli amp hours in your question. If the battery is made for the product it should work okay. The current rating of the battery is not very critical. If the new battery is of a higher current rating it will take a bit longer to charge.
1701133
The battery comes upgraded to 5AH. I guess it's a marketing strategy, but it works.
1027101
You can also get a SLA battery and plug it into the 12v input jack on the back. A 12v 7ah should give plenty of runtime. That's really the only way to go for outdoor use, in my opinion. I've powered all my portables this way for years. D cells get expensive fast and rechargeable D's don't last long in powerful systems. (as little as 2 or 3 hours in one of mine)
2243256
If you need an 8AH battery you shouldn't use a 7AH rated battery. Go to higher AH rated battery, but not a lower rated.
1704513
The battery is a 6fm-18, listed on the battery as a 12v-18ah/20HR. I'm not sure of the formula to convert the amp hours to watt hours.