I bought 2 of these batteries to replace the expensive original batteries of Canon. What should I say large, the quality is impeccable as always with Haehnel batteries, there are no problems in operation with the Canon XH-A1 (or even Canon XM-2). With the batteries, the XH-A1 can be operated just under 6 hours so you get loose through a typical day of shooting.
Conclusion: The perfect alternative to Canon genuine batteries.