UPDATE: I showed it to my husband (should have shown it from the start). Apparently there were no pieces that should hit the battery in 2 places, he was able to adjust it with tweezers And it works as expected! This product no longer works. Received it on April 2nd 2021. He died after 5 weeks, I thought he needed a new battery - finally got a new one in but it still doesn't work.
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