New Batteries on the market ?

[Jim Almquist]

I was reading the post on batteries and I remembered that while I was at L&M they now have both 7Amp hour and 8 Amp hour.$14.95 for the 7 and 19.95 for the 8. Looks like they are the exact same size.

[swags_7]

There are several in that size, but different amperage. I get the 9 amp hour ones now. Same size, just higher amperage, which means longer run time.

[sirsunnyslayer]

Is there a place that sells the 9ah locally?

[Glockwinger]

Fleet Farm had them last week for $39.95. It was the EXACT same battery and charger that I paid $59.95 from Vexilar a couple weeks ago. I was kicking myself. They had the 7ah for around $20. I guess that is what I get for trying to gear up before the stores got their stuff out. I am thinking about buying a spare there now.

[Surface Tension]

The difference is storage capacity. A flasher will have around 5 hours more run time with the 9 amp hr. over the 7 amp hr.

[blueroof]

From my understanding AH ratings are not regulated at all. Different companies load test in different ways to get their ratings. If you find 7ah, 8ah, and 9ah batteries, the quality might not be all that different, particularly if they are made by different manufacturers. If each different ah battery is by the same manufacturer, I would be a bit less dubious about cost and rating differences.

As an aside and to add further confusion, we use lots and lots of dc rechargeable batteries at work. From my experience many of the batteries of similar size that are rated for higher AH, don't last nearly as long as lower AH rated batteries. We've used lots 6volt 5 ah batteries and 6volt 6 ah batteries, we've found the 5 ah to be a superior battery in regards to lifetime and rechargability. We're not testing for length of use, we just use them to isolate controls in experiments from power sources.

LB

[slipperybob]

I don't know anything about which 7ah or 9ah thingy. I thought it might had to do with the power charge and output like in power inverter's the 7 amp charge or 15 amp charge thing. All I know is that the faster charge outputs a lot of heat, but you build a full charge very quickly. I think it also wears your battery out faster. Just my thought...I was wonder if that perhaps the slower charge ones also gets you a better full charge over the quicker ones?

[Surface Tension]

A small battery like that takes a charger of 1 amp or lower.

500 milli amp(1/2 amp) is a common output charger for those batteries.

[minndonn]

I purchased 2 9mah batteries from Thorne at the Mpls show for 15.00 ea. I also saw them earlier at Gander for the same I think. They did not come with a charger which I have plenty of already. The 7 vs 9mah difference is how long they will run and the 9 mah will take longer to charge with the same charger. These were Vexilar batteries.

[slipperybob]

So I got the 7amp battery, it's the Vexilar fisherman's battery V-110, which came with a charger at 500 milliamp. It took about 48 hours to charge it. That's an awful long time. Plus you have to remember to unplug it, otherwise it keeps trying to overcharge it.

[calli4120]

Will the charger I have for a 7ah battery work for a 9ah battery or would I be better off getting a different charger?

[Thunderman]

I have a 7amp and a 9amp I don't think there is alot of difference.I use a battery tender charger made by interstate. 750 milli amp it works very well you can keep it on the charger for as long as you want, it has a float mode that works fantastic you can not over charge.I have had these 2 batteries and this is year 5 and neither one has let me down .

[slipperybob]

I believe that the highest charger for these types of battery would run at 1.5 amp on the charge.