Canon have optimised their latest rechargeable Li-ion battery, the Canon NB-15L, to deliver 3.6 V, 1250 mAh, and 4.5 Wh. This compact battery can be used as a replacement or spare battery for select Canon PowerShot series cameras, including the G7 X Mark III, SX740 HS, and many more (see below for a full list of compatible Canon cameras).

The NB-15L has been designed as a high-quality replacement for the Canon NB-13L, allowing the NB-15L to be used in the same cameras as the previous model. 
    Li-ion rechargeable battery
    3.6mAh, 4.5Wh

What’s in the box?
    Canon NB-15L Battery

FAQ
What charger is compatible with the NB-15L?

The battery can be charged using the Canon CB-2LHE charger.
Which cameras are compatible with the Canon NB-15L Battery?

The NB-15L Battery is compatible with the following cameras:

•     G1 X Mark III
•     G5 X Mark II
•     G7 X
•     G7X Mark II
•     G7 X Mark III
•     G9 X
•     G9 X Mark II
•     SX620 HS
•     SX720 HA
•     SX730 HS
•     SX740 HS