is this thing really that much smaller than a 6V ecocharge? Looks like about the same size, not sure if I will be saving any significant space by using this thing over my trusty ecocharge battery. Any thoughts?
Take care,
Ben
The 9v lithium is about 2/3 the size of the 6v. Comparing to a 6v 7Ahr SLA battery (not the ecocharge, just a battery), the length and height are about exactly the same -- 6" x 3.6" (an ecocharge with the plastic top will be even larger). The width of the lithium is only about 0.9" compared to the 6V SLA at about 1.35".
The big saving will be the weight though. The SLA is about 3 pounds, the lithium only 10 or 12 ounces. The real world capacity of these is fairly close, but the SLA probably has around 10% more. SLA capacity goes down fairly significantly at high current draws, probably 10 or 15 percent. I don't think lithiums suffer from this problem. So with an 850ma to 1000ma draw, the 7.0Ahr SLA will only have about 6.0Ahr, compared to the 5.4Ahr lithium.
Of course, for those people who would need a 12v SLA rather than a 9v lithium (eg, for a UA5 say), there will be much bigger savings for the lithium.
Anyway, all that said, I'm withholding judgement until I can put the lithiums through the paces. I've bought a few to replace my SLAs. Pretty much had to -- I had 2 of my 4 SLAs die recently, reached their maximum cycle life. Found out the hard way (dying prematurely at a show) that the SLAs had reached the end of their life and were no longer holding a full charge. Now I don't trust my remaining two SLAs which I got at more or less the same time (and have been rotating all 4 for use in my rig). So for now, I'm running the lithiums exclusively. We'll see how many shows/cycles they last.
I am loving the small, light bag though.
