We listen 5 houre or more daily and got tired of buying batteries every 130 hours so I bought 8 Powerex 9.6v 230mAh rechargeable with associated charger. Charges in less than 2hrs. The seller claims over 1000 charges over the life of the battery. Sound great, fit well. I have 27 hrs on a charge so far and counting.
Rechargable 9v
- Thread starter mkane
- Start date
denti alligator
New member
Bad for Quickie?boulos said:
Reviews of these aren't great.
How important is the mAh?
Natural Sound
New member
denti alligator said:
The voltage is fine. Read Paul Joppa's comments here http://bottlehead.com/smf/index.php?topic=1242.msg8571#msg8571
The higher the mAh rating the longer they (should) last.
4
4krow
Guest
Rechargables are certainly of interest to me. I am thinking that Li-ion battery would be a good choice for a rechargeable. This might be apples and oranges in some way, but for power tools, Li-ion beats all the others that I have tried. I even have an integrated amp that uses one. Going a step further, I am looking forward to more development of the 'super' capacitor banks that can be used back and forth for a continual power. Thar are said to have much less internal resistance as well.
Paul Joppa
Moderator
Just a note - the current drain of Quickie is very low, so the high current capacity of power-tool batteries is not used. What counts is often the leakage current. There are low-discharge NiCd cells, NiMH has around twice the leakage of normal NiCd, and lithium-ion cells are even worse. At least, that's how I remember it - been a while since I looked these up.
WK3K
New member
I'm gonna taking the plunge on the rechargeable's as well. @mkane, are you still happy with the Powerex? It looks like they just introduced a new line this year: http://www.mahaenergy.com/blog/new-line-of-batteries-powerex-precharged/.
They now offer two different versions of 9v batteries: one at 9.6v and 230mah and the other at 8.4v and 300mah. I seem to remember another thread in which someone said the higher the mah, the longer the batteries should last. PJ has mentioned in the past that even 7.2v batteries would be enough to drive the quickie, and headroom isn't really a problem for me.
I'm trying to get the most milage per charge, so I'm thinking the 8.4v at 300mah is the way to go. Anyone have any thoughts before I pull the trigger?
Witold
They now offer two different versions of 9v batteries: one at 9.6v and 230mah and the other at 8.4v and 300mah. I seem to remember another thread in which someone said the higher the mah, the longer the batteries should last. PJ has mentioned in the past that even 7.2v batteries would be enough to drive the quickie, and headroom isn't really a problem for me.
I'm trying to get the most milage per charge, so I'm thinking the 8.4v at 300mah is the way to go. Anyone have any thoughts before I pull the trigger?
Witold
Paul Joppa
Moderator
If you squeeze the longest life you can from alkaline "9v" batteries, they will drop from 9v to 6v, so the design was centered at 7.5v per battery. NiCd and NiMH batteries hold their voltage pretty constant until the charge is mostly used up. I stand by my opinion that anything above 7v is adequate for most systems.
Karl5150
New member
I picked up EBL brand Ni-MH of both 9V and D cells from the place that ships in the box with a smile on it. I noted the voltages upon receipt and there was no noticeable loss in the 6 or so weeks prior to replacing the alkaline sets in my Quickie (9Vs were at 6.75V). I topped them off with the smart charger and have been using them for a couple weeks. I will report back if I experience unexpected results, good or bad.
