Recommendation for M20 battery

swimmerdude1127

Newly Enlightened
Joined
Jan 17, 2010
Messages
6
Hi all, I'm thinking about getting an Olight M20 and want to get one or two 18650's to use with it. I'm really new to the forum here and the only lights I have right now run off AA's or CR123's.

So my question is, is this a good battery choice for the M20?
http://www.batteryjunction.com/ultrafire-xsl-2600-18650.html

What is the difference between flat top and button top?

Also, what is a good charger that wouldn't drain the battery after numerous recharge cycles.... and possibly have the capability to recharge other cells (AA or AAA) as well?
 
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