Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to test your batteries [title] Get the battery you suspect is dead. [step] If you have have a device that harbors multiple batteries, it would be a good idea to test all of them. Keep in mind that this method only works for alkaline batteries, more specifically the aa and aaa models.

Ending1: [title] Hold the battery with the negative terminal (flat side) facing down. [step] Preferably have it held one or two inches above a flat surface, such as a table. Ending2: Having the battery be dead before testing is pointless, especially when a device is used for battery saving purposes. Make sure you remove any potential charters which could cause the battery to malfunction. Ending3: [title] Feel around the battery for visible contact. [step] Most devices that you find out have small contact points. Ending4: Then, you should try multiple batteries to get a good shot at the battery you suspect is dead. [substeps] Inside of a battery will be an electrode.

Answer format: ending1/ending2/ending3/ending4