Pig9r
Living Legend
Deka batteries are made by East Penn Manufacturing - a USA company. I am not completely sure their entire battery line is still made in the USA. Even Interstate is having many AGM bike batteries made in China today.
I have had good results from several AGM YTX20HL-BS (and relates cross over part numbers) with 310-320 CCA. Even the Chinese Scorpions and Xtremes seem to work well.
I just got a Deka Extreme ETX20L AGM (thanks to Toystoretom). It's rated at 310 CCA and out of the box it tested at 514 CCA. After being on the charger for awhile it almost hit 600 CCA.