Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to know when you have to get a replacement battery [title] Check for excessive heat when the battery is in use. [step] A little heat is normal when batteries are recharging or working, but excessive heat can be a sign that they are dying. Notice if the battery starts to heat up significantly more than normal, or compare your suspicious battery to a newer one to see if there is a significant difference in heat.

Ending1: [title] Analyze if you use newer batteries for a brief period. [step] If you use newer batteries frequently you may have misplaced your current battery to an older one. Ending2: [title] See if your battery gets bloated or swells up. [step] Sometimes when the rechargeable batteries start depleting, the internal cell ruptures and starts leaking. Ending3: [substeps] Your battery may not heat up much at all. It may just look like a few silver scraps that should be thrown away. Ending4: [title] Note any changes in the color, spark, or voltage of the battery. [step] Replacing a battery is a major change.

Answer format: ending1/ending2/ending3/ending4