"Use only alkaline batteries"

Factual Questions
41

[QUOTE=Q.E.D.]
Grease is good. It helps the electricity flow better. :wink:
[/QUOTE]

<head explodes>

42

[QUOTE=Q.E.D.]
Grease is good. It helps the electricity flow better. :wink:
[/QUOTE]

I stick to good old KY jelly.

Oh wait, you’re talking about batteries

43

[QUOTE=Don’t Call Me Shirley]
I read somewhere (can’t remember where) that alkaline batteries are 1.5 volts and rechargeable batteries are 1.2 volts. My rechargeable batteries claim they are 1000 ma (AAA) and 2500 ma (AA).

  1. When they say “ma” do they really mean milliamp hours? That seems to make more sense than just milliamps.
  2. How many ma or milliamp hours are alkaline batteries? I’ve never seen one labeled with that information.
    [/QUOTE]
    They don’t seem to put capacity on old fashion alkaline batteries packages. I had to poke around for a while to find these. With the rechargeables that information is in big print on the packages.
    http://data.energizer.com/SearchResult.aspx
    The energizer regular alkaline AA is 2850 mAh. The e2 batteries from energizer have 2900.
44

[QUOTE=Malacandra]
Now if you want to get into a dick-measuring contest about useless OTTOMH knowledge, I’m there. :stuck_out_tongue:
[/QUOTE]

Nah, I’m just yanking your chain right back atcha, is all. :wink:

45

Another difference between Alkaline, NIMH, and Lithium (Lithium-Ion rechargables and disposable primary cells) cells is that alkalines sag more under load, as well as have higher internal resistance

a NIMH has a lower nominal voltage, but that voltage stays more level and steady as the cell discharges, so it’s delivering current more consistently than an alkie

Lithium based chemistry has the highest energy density (Lithium AA cells are 1.7 actual volts, not 1.5) and an extremely flat discharge curve

scroll down to the runtime graph for this flashlight it shows the major differences between the three chemistries