Kalibrasi Ulang Baterai iPhone
Smartphone makin canggih dan kinclong. Dan juga makin tipis. Untuk bisa setipis yang kamu lihat sekarang, beberapa smartphone mesti bikin pengorbanan: tidak ada lagi tutup baterai, alias baterai tidak bisa diganti. Kebiasaan untuk tidak bisa mengganti baterai, seperti kebiasaan lain-lain, dimulai dari Apple. Kawanku, baterai iPhone tak bisa diganti, sekarang beberapa smartphone lain pun menyusul memasukan baterai kedalam cangkang yang tidak gampang dibuka, diantaranya adalah HTC One, HTC One X, Nokia Lumia 900 series, Sony Xperia Z, Motorola Droid Razr Maxx.


Masalahnya sekarang adalah, gimana kalau baterai iPhone kamu mulai menunjukkan sedikit attitude seperti yang dialami dua orang teman saya? Yup, iPhone juga bisa punya attitude. Yang mereka alami adalah iPhone mereka tiba-tiba mati saat indikator batere masih 35% (dan seorang yang lainnya bahkan 80%).

Kalau kamu lagi mencari gimana caranya biar batere iPhone awet dipake, nanti saya bahas di artikel lain, sementara ini artikel ini hanya akan membahas kasus seperti yang dialami dua kawan tadi.

Yang kedua kawan tadi butuhkan adalah kalibrasi ulang batere. Intinya adalah mensikronkan kembali antara kapasitas real batere dan indikatornya. Caranya adalah sebagai berikut:

1. Gunakan iPhone sampai batere habis dan iPhone mati dengan sendirinya.
2. Charge iPhone sampai penuh 100% tanpa terputus. Ini penting, jangan sampai putus.
3. Setelah penuh, lakukan reset dengan cara tekan dan tahan tombol sleep dan tombol home secara berbarengan hingga muncul logo Apple (acuhkan tanda Swipe to Power Off").
4. Gunakanlah dengan normal hingga baterai habis, perhatikan indikator baterai, seharusnya iPhone akan mati pada saat baterai mencapai antara 0% hingga 3%.

Kalau baterai iPhone anda tidak memperbaiki attitude nya tersebut, mungkin sudah saatnya mempertimbangkan upgrade ke iPhone gerenasi lebih lanjut misalnya iPhone 5. Toh iPhone 5 memang jauh lebih kaya feature, baterai tahan lama, lebih enak dipakai karena layar gede dan ringan, dll. Untuk seluruh model iPhone, silakan cek harga iPhone di sini.

Mungkin PeEr selanjutnya adalah mengamati berapa lama sih sebenernya batere iPhone kamu bertahan dalam satu kali charge, sehari? setengah hari? dua hari? Walaupun memang umur batere sangat tergantung pemakaian kamu, kamu tetap bisa sedikit menghemat batere dengan cara-cara tertentu. Hal ini kita bahas lain waktu.

Kebiasaan tidak bisa ganti baterai sekarang tidak hanya sebatas pada smartphone doang. MacBook Air dan MacBook Pro sekarang pun baterai nya non-replaceable. Dan kelihatannya beberapa ultrabook lain-lain dari Lenovo, Asus dan Acer pun mulai menggunakan trik ini.


Hockey is not exactly known as a city game, but played on roller skates, it once held sway as the sport of choice in many New York neighborhoods.

“City kids had no rinks, no ice, but they would do anything to play hockey,” said Edward Moffett, former director of the Long Island City Y.M.C.A. Roller Hockey League, in Queens, whose games were played in city playgrounds going back to the 1940s.

From the 1960s through the 1980s, the league had more than 60 teams, he said. Players included the Mullen brothers of Hell’s Kitchen and Dan Dorion of Astoria, Queens, who would later play on ice for the National Hockey League.

One street legend from the heyday of New York roller hockey was Craig Allen, who lived in the Woodside Houses projects and became one of the city’s hardest hitters and top scorers.

“Craig was a warrior, one of the best roller hockey players in the city in the ’70s,” said Dave Garmendia, 60, a retired New York police officer who grew up playing with Mr. Allen. “His teammates loved him and his opponents feared him.”

Young Craig took up hockey on the streets of Queens in the 1960s, playing pickup games between sewer covers, wearing steel-wheeled skates clamped onto school shoes and using a roll of electrical tape as the puck.

His skill and ferocity drew attention, Mr. Garmendia said, but so did his skin color. He was black, in a sport made up almost entirely by white players.

“Roller hockey was a white kid’s game, plain and simple, but Craig broke the color barrier,” Mr. Garmendia said. “We used to say Craig did more for race relations than the N.A.A.C.P.”

Mr. Allen went on to coach and referee roller hockey in New York before moving several years ago to South Carolina. But he continued to organize an annual alumni game at Dutch Kills Playground in Long Island City, the same site that held the local championship games.

The reunion this year was on Saturday, but Mr. Allen never made it. On April 26, just before boarding the bus to New York, he died of an asthma attack at age 61.

Word of his death spread rapidly among hundreds of his old hockey colleagues who resolved to continue with the event, now renamed the Craig Allen Memorial Roller Hockey Reunion.

The turnout on Saturday was the largest ever, with players pulling on their old equipment, choosing sides and taking once again to the rink of cracked blacktop with faded lines and circles. They wore no helmets, although one player wore a fedora.

Another, Vinnie Juliano, 77, of Long Island City, wore his hearing aids, along with his 50-year-old taped-up quads, or four-wheeled skates with a leather boot. Many players here never converted to in-line skates, and neither did Mr. Allen, whose photograph appeared on a poster hanging behind the players’ bench.

“I’m seeing people walking by wondering why all these rusty, grizzly old guys are here playing hockey,” one player, Tommy Dominguez, said. “We’re here for Craig, and let me tell you, these old guys still play hard.”

Everyone seemed to have a Craig Allen story, from his earliest teams at Public School 151 to the Bryant Rangers, the Woodside Wings, the Woodside Blues and more.

Mr. Allen, who became a yellow-cab driver, was always recruiting new talent. He gained the nickname Cabby for his habit of stopping at playgrounds all over the city to scout players.

Teams were organized around neighborhoods and churches, and often sponsored by local bars. Mr. Allen, for one, played for bars, including Garry Owen’s and on the Fiddler’s Green Jokers team in Inwood, Manhattan.

Play was tough and fights were frequent.

“We were basically street gangs on skates,” said Steve Rogg, 56, a mail clerk who grew up in Jackson Heights, Queens, and who on Saturday wore his Riedell Classic quads from 1972. “If another team caught up with you the night before a game, they tossed you a beating so you couldn’t play the next day.”

Mr. Garmendia said Mr. Allen’s skin color provoked many fights.

“When we’d go to some ignorant neighborhoods, a lot of players would use slurs,” Mr. Garmendia said, recalling a game in Ozone Park, Queens, where local fans parked motorcycles in a lineup next to the blacktop and taunted Mr. Allen. Mr. Garmendia said he checked a player into the motorcycles, “and the bikes went down like dominoes, which started a serious brawl.”

A group of fans at a game in Brooklyn once stuck a pole through the rink fence as Mr. Allen skated by and broke his jaw, Mr. Garmendia said, adding that carloads of reinforcements soon arrived to defend Mr. Allen.

And at another racially incited brawl, the police responded with six patrol cars and a helicopter.

Before play began on Saturday, the players gathered at center rink to honor Mr. Allen. Billy Barnwell, 59, of Woodside, recalled once how an all-white, all-star squad snubbed Mr. Allen by playing him third string. He scored seven goals in the first game and made first string immediately.

“He’d always hear racial stuff before the game, and I’d ask him, ‘How do you put up with that?’” Mr. Barnwell recalled. “Craig would say, ‘We’ll take care of it,’ and by the end of the game, he’d win guys over. They’d say, ‘This guy’s good.’”

Tribute for a Roller Hockey Warrior

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