JBL Xtreme 2 Speaker battery

Outline	Model	Type	Capacity	Price	Order
	CS-JMX200XL Generic	Li-ion	6800mAh 7.4v	$59.00Cdn ($47.20US)	Quantity:

Installation instructions can be viewed here.

The above batteries will have different model numbers on the product pages since they are after market replacement batteries which are as good or better than the originals.  The current or mAh (milliamp hour) rating of a battery is an indication of the battery capacity or how long it will last on a charge, the higher the better.
1 year warranty & no questions asked 1 month return policy.