If you could use either of these batteries...

[Goldom]

which would you?

http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=23-167
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=23-164

The battery cover says either is ok, and I can't tell any difference except 50mAh compared to 60mAh, but I don't even know what a mAh is.

[amerikat]

1. go for the more powerful one 60mah

[salvorhardin]

2. Use the 60mAh

It will last longer. Stores more juice.

mAh = milli-Amp hours
http://electronics.howstuffworks.com/battery9.htm

[Rabrrrrrr]

3. I would use the one recommended by the manufacturer of the thing it's for

That's the only way to make a decision. If it says that you can use either one, then go with the 60mAh one. It's is "milli-ampere hours" which is a quanity of energy stored. The more, the better.

Like a car battery, which are (or at least used to be) in the 100Ah range (100 ampere-hours, way bigger than that lithium one).

[Aiptasia]

4. Must go in a "hello kitty" vibrator....

http://www.healthyplace.com/Communities/Dieting/pps/2000/00-02/02-12b-00.html

I'm dead serious. San Rio has gone nuts. I wonder if they make a Bats Maru penis pump?

[Goldom]

5. thanks

for backup battery on graphing calculator. mine died yesterday and lost tons of things on it =(. It had a 1616 in there now, but the cover says either, so i'll get 1620 i guess.