Is there anything bad about it? I bought it.
http://www.ebay.com/itm/400522743516

 

Made in China. No Cold Crank Amps Rating. Posts are side not flat, not a big deal, but don't tighten them down too hard you may snap it off. It's not the battery I would buy, but it is your money.

Check the voltage before putting it in the bike. You may need to top it off. If you do make sure that the charger you use will not charge above 14 volts.

How much did you spend on your bike? Why cheap out on a battery?

 

Did you read the Back Panel, it's pretty comical.

 

I paid $2900 in non-running condition with cracked transmission and lots of missing parts. Parts and registration will cost me about 1500, including paint. (most likely Ford Mustang bright red)
Parts I bought or will buy and price:
transmission 550
speedometer 80
kickstand 35
ignition switch 25
instrument concole 63
indicator 35
headlight 9
headlight chrome ring (25?)
right floor board 30
exhaust pipes 60
seat (200?)
rear fender 120
paint ($100?)
battery 47
right side cover 40?
saddle bags 150?
saddle bag frames 50?
key 32 (for steering lock)
dovel bushings 10
DMV registration 300
right engine mount 44
handlebar levers 21
brake caliper 72
tires look OK, I need to check manufacturing dates

 

Low budget no name battery without a date code.
No idea how old it could be.
The type of battery that someone might buy when trading a bike into dealer.
Post are different and might present a mounting challenge.
Not something i would choose if i was planning a long ride or if i was keeping the bike.
I would worry every time it had a slow crank far from home.

 

I installed battery from Yamaha, works fine! 20a/h instead of 30.
20 is probably enough for Florida.

 

It's ok because the warning says

D
A
M
G
E
R

;-)

 

The problem in Florida is the heat, especially like we had last summer. It kills batteries.

 

You don't want a battery that is probably enough, you want one that is more than enough. How many CCA's is it?
You should get something like this: http://www.phatperformanceparts.com/.../yuasa-gyz.htm

 

I would not have high hopes.