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What is the 5 minute rule for hearing aid batteries? (And is it real?)
Your hearing aid is a lifeline to the rest of the world. Noise cancellation and sound amplification are two key ways your trusty hearing aid can help with mild to severe hearing loss. What isn’t convenient is a short hearing-aid battery life; replacing those little button batteries can be a pain, especially if you’re dealing with batteries that run out of juice in weeks or even days. One thing you should always consider is replacing the hearing aid itself; some models offer longer battery life than others. We’ve assembled the best options for you in the handy guide below.
You may have stumbled across the five-minute rule when trying to find ways to get the absolute most out of your hearing-aid battery and other hearing-aid accessories. Is it an effective trick for extending battery life? And also, how does it work? Let’s get into it.
What is the five-minute rule for hearing aid batteries?
The five minute rule for hearing aids can be an easy hack for extending your hearing aid battery life by a few extra days. But how does this work, exactly?
Most hearing aids, especially affordable over-the-counter or OTC hearing aids from trusted brands like MDHearing, are powered by a replaceable button cell battery that you can buy from most retail stores and hearing aid providers.
Today, these batteries are powered by a zinc air system. All you need to know about this bit of hearing aid tech is that a chemical reaction occurs when air flows into the battery casing (through tiny perforations or holes on the surface) to produce energy. This is why your replaceable hearing aid batteries come factory sealed with a protective film that needs to be peeled off before using them.
The five-minute rule for hearing-aid batteries is a simple way to get a few extra days of life out of your batteries. The next time you need to replace your hearing-aid battery, here’s what to do:
- Don’t remove the protective film on the new hearing-aid battery until you’re ready to replace your old one.
- After removing the protective film, don’t immediately insert the new battery. Instead, wait five to seven minutes.
- Waiting five minutes before inserting the new battery lets enough air into the battery to fully activate the battery’s power centers.
In case you’re wondering just how legitimate this hearing aid trick is, one study found that this tactic may extend the battery life by up to two or three days. We double-checked the science behind zinc air systems, too — since air is the positive active material that activates these batteries, this trick for extending battery life on your hearing aid checks out.
What is the best type of hearing aid?
Hearing aids come in all shapes and sizes, with different battery types and locations to get used to. The main hearing aid types you’re likely to come across include:
- Behind-the-ear (BTE): BTE hearing aids loop over the top of the ear, with most of the electronics in a plastic case behind it. With the largest design, these provide optimal sound amplification over other models.
- In-the-ear (ITE): ITE hearing aids are custom-made to sit entirely in the outer ear. These devices have a longer battery life and usually come with more features, such as volume control, than smaller models.
- Receiver-in-the-canal (RIC): RIC hearing aids (as well as the smaller receiver-in-the-ear, or RITE, devices) are similar to a BTE in design, but with a connecting wire in place of the BTE’s earmold. This gives the ear canal more room and results in a more comfortable fit.
- Completely-in-the-canal (CIC): CIC hearing aids have the smallest design, with a custom-built shell that fits in the ear canal. These are the least noticeable, but don’t offer many features or the most powerful sound amplification.
Rechargeable vs. replaceable hearing-aid batteries
Whether or not the five minute rule for hearing aid batteries applies to your device depends on the type of battery it uses. Many popular hearing aid brands make use of rechargeable batteries, which are typically made of lithium-ion and last up to 24 hours on a single charge. These can be more expensive than replaceable batteries, but the upside to rechargeable batteries is that they generally need to be replaced once a year — just make sure you’re charging them each night.
Replaceable batteries will need to be replaced much more frequently than a rechargeable battery, but the upside is that they’re a cheaper alternative. It’s hearing aids that use these button cell batteries that can benefit from the trusty five minute battery rule, extending your battery life by up to 72 hours.
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The Scott Peterson case: New evidence?
What started out as a college romance ended in murder and mystery.
1994 – Scott Peterson and Laci Rocha met in 1994 while both were attending college at California Polytechnic State University. They married two years later. In 2002, Laci became pregnant. The two lived in Modesto, California and planned to raise their unborn son Conner there.
Laci Peterson Missing
December 24, 2002 – Scott Peterson says that on Christmas Eve morning, he left his pregnant wife alone to go fishing about 90 miles away at the Berkeley Marina. He says that Laci planned to walk the couple’s dog, McKenzie, and mop the kitchen floor. When Scott returned home hours later, he says he found McKenzie there alone, still wearing a leash – but no sign of Laci. That evening, Laci’s stepfather called the police to report her missing.
Searching for Laci
Family, friends, and volunteers launched a huge search for Laci Peterson.
Scott Peterson was interviewed by police in the early hours of Christmas Day. Now-retired Modesto Police Detective Jon Buehler says Scott didn’t seem as interested as one would expect. “Oftentimes, a victim who’s left behind is firing tons of questions at us … And we didn’t get any of that from him,” Buehler told “48 Hours.”
Amber Frey
December 30, 2002 – Less than a week after Laci Peterson went missing, Modesto detectives raced over to investigate an intriguing lead: a Fresno massage therapist named Amber Frey revealed that she had been dating Scott Peterson for over a month. She told police that Peterson had lied to her and said he was single.
Secret Recordings
Former Detective Buehler notes, “Her recall was fantastic. It was almost like it was a script from a Hallmark TV show or something.” Amber Frey recalled every detail of their romantic dates, down to what they were wearing. Hoping for clues that might lead them to the missing woman, detectives ask Frey to record phone calls between her and Scott Peterson, and she agrees.
Affair Revealed
January 24, 2003 – In an explosive press conference one month after Laci Peterson goes missing, Amber Frey publicly reveals her affair with Scott Peterson. “I am very sorry for Laci’s family and the pain that this has caused them,” she said. “And I pray for her safe return, as well.”
Prior to Frey going public, Peterson had told her in a recorded call that he was in Paris when he was really in Modesto while the search for Laci was still on. Eventually Scott admitted to her, “I’ve lied to you that I’ve been traveling.” Those recorded calls would later become part of a damning case against Peterson.
Bodies Found
April 13 and 14, 2003 – Two bodies are found on the shores of the San Francisco Bay. They are later identified as Laci Peterson and her unborn child. The two bodies were found about a mile apart.
Scott Peterson Arrested
April 18, 2003 – Authorities caught up with Scott Peterson at a golf course in San Diego and arrested him. Authorities found a wad of cash, his brother’s ID card, and multiple cell phones inside the vehicle. Days later, Peterson pleaded not guilty to two counts of capital murder.
Trial and Error
June 1, 2004 – Scott Peterson’s trial begins in San Mateo County, California. Because of massive publicity the trial was moved from Modesto to Redwood City, in San Mateo County. The decision was made because the judge decided it would be difficult for Peterson to get a fair trial too close to home, where emotions were running high.
High Suspicions
August 10, 2004 – In what many consider a major turning point of the trial, Amber Frey took the stand for the first time to tell the jury about her relationship with Scott Peterson, a secretly married man, and about all the lies he told her. Frey painted a picture of a dishonest man who could tell falsehoods with ease, hurting his credibility.
Jurors heard the lies for themselves in those recorded phone calls Frey made.
Justice for Laci and Conner
November 12, 2004 – Scott Peterson was found guilty of first-degree murder for the death of his wife Laci and second-degree murder for the death of his unborn son Conner. Crowds outside cheer.
Peterson Jurors
March 16, 2005 – Four months after his conviction, Scott Peterson is sentenced to death. At a press conference, Juror No. 7, Richelle Nice, [pictured center] called Peterson a “jerk” and commented “San Quentin is your new home,” referring to the prison where he would serve his sentence. Nice was nicknamed “Strawberry Shortcake” during the trial because of her hair color.
Death Sentence Overturned
August 24, 2020 – After two appeals, Scott Peterson’s death sentence was overturned by the California Supreme Court after deciding that the original trial judge made a mistake when jurors were being picked for trial. The result of that mistake, Peterson’s supporters say, was that the jury was stacked with pro death penalty jurors. Peterson, shown here in 2018, will now receive a new trial for only the sentence phase.
The court upheld his murder convictions.
Juror No. 7
October 14, 2020 – The California Supreme Court orders a lower court to reexamine Peterson’s murder convictions and decide if he should get an entire new trial. Scott Peterson’s supporters say it all comes down to the actions of that juror once nicknamed “Strawberry Shortcake” – Richelle Nice, pictured here in 2005.
During jury selection, prospective jurors filled out a questionnaire asking if they had in the past been in a lawsuit and if they had been crime victims. Nice checked no. “It’s pretty clear… that she lied to us straight to our face about her own situation,” Peterson’s current attorney Pat Harris told “48 Hours.” In fact, Nice was involved in two domestic disputes in the past. But prosecutors say when Nice filled out that questionnaire she didn’t lie, she just didn’t think her past experiences were relevant to the questions and didn’t see herself as a victim. Now a lower court will consider if Peterson will get a complete retrial. Richelle Nice declined to speak with “48 Hours.”
New Evidence?
March 7, 2021 – CBS News’ Jonathan Vigliotti interviewed Scott Peterson’s sister-in-law Janey Peterson in her “war room” of evidence she claims proves his innocence. She claims witnesses saw Laci walking in the neighborhood near the Peterson home after the time Scott said he left for the fishing trip. If that’s true, Scott couldn’t have killed Laci.
Scott Peterson’s attorney explains, “there’s been a lot of criticism because we didn’t call some witnesses who saw Laci that day,” and that the thought process at the time was that “a number of the witnesses who saw her didn’t have great – memories or had contra – were contradicting each other.”
Retired detective Jon Buehler says there are no witnesses who saw Laci alive that morning. He says there were other young women in the neighborhood who were pregnant and looked similar to Laci, and that “it would be real easy for somebody to mistakenly see one of those three girls as being Laci.” Still, Janey Peterson insists that Scott is innocent.
A Burglary
Perhaps more important to a new defense case is what Janey Peterson believes actually happened to Laci. She points to a burglary she believes happened on the same day Laci disappeared, right across the street from the Peterson home. Scott Peterson’s supporters theorize that Laci confronted the burglars and that ended badly. But police quickly arrested the burglars – Steven Todd and Donald Pearce – pictured here in a 2003 Modesto Police Department press release.
Awaiting a Decision
April 27, 2021 – Scott Peterson appeared in court remotely for a status hearing on a new death penalty trial.
Dec. 8, 2021: Scott Peterson was resentenced to life in prison without the possibility of parole for the deaths of his wife and unborn child.
2024: The Los Angeles Innocence Project took up Peterson’s fight for a new trial. Since then, a California judge has granted his defense team access to previously undisclosed evidence as well as permission to do additional DNA testing.
Peterson and his supporters maintain the wrong man is in prison for Laci and Conner’s deaths. According to Detective Buehler, “Well, I guess it’s possible. But you know, there’s still people that believe the Earth is flat too.”
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