![]() With a smartphone cell, you get a protection circuit, usually a built-in thermistor and often a one-wire or I2C fuel gauge. You can source these contacts from online repair shops, LCSC, Aliexpress and probably more. If you’d like to make your device repeatable by others and make battery sourcing simple, perhaps work around LiIon shipping restrictions, or if you’re a garage startup itching to get a small prototype batch out of the door, smartphone batteries are a good bet.Įven more, there’s not much preventing you from putting the same contacts used by phones onto your PCB. However, shopping for smartphone batteries in your local stores is still worthwhile if you need a small cell to power your device.įor instance, user-replaceable batteries are still manufactured and sold for numpad phones from manufacturers like Nokia, with cells typically around 1000 mAh, more than enough for a small ESP32 or Pi Pico project that spends lots of time asleep. Of course, we’ve all seen a phone battery die earlier than the phone did, and in many modern phones, the cell is glued-in and harder to extract. Smartphone Batteries A Viable Source A radio rebuild project using a Nokia batteryįirst underappreciated source of LiIon cells, specifically pouch cells, are smartphone batteries. Let’s see what your options are beyond laptops. However, a 18650 cell might not fit your project size-wise, and thin batteries haven’t quite flooded the market yet. Taking laptop batteries apart, whether the regular 18650 or the modern pouch cell-based ones, remains a good avenue – many hackers take this road and the topic is extensively covered by a number of people. But what if you don’t have any LiIon cells yet? Where do you get LiIon cells for your project? * 0 dBu = 0.775 Vrms *The specifications are subject to change without notice.In the first article, I’ve given you an overview of Lithium-Ion batteries and cells as building blocks for our projects, and described how hackers should treat their Lithium-Ion cells. AC Adaptor and Battery ) Width 244 mm9-5/8 inches Depth 166 mm6-9/16 inches Height 226 mm8-15/16 inches Weight 3.3 kg7 lbs. REC OUT/PHONES Jack: Stereo 1/4" phone typeĪUX IN Jacks: Stereo 1/4" phone type, Stereo miniature phone typeĪC Adaptor Jack Power Supply DC 9 V: AC Adaptor or Dry Battery (LR6 (AA) type) x 6 Current Draw 185 mA Accessories AC Adaptor POWER Switch Connectors INPUT Jack: 1/4" phone type Take a Cube anywhere you go! Rated Power Output 2 W Nominal Input Level INPUT: -10 dBuĪUX IN: -10 dBu Speaker 12 cm (5 inches) x 1 Controls TYPE Switch The Micro Cube also comes with a choice of 1/4-inch and 1/8-inch stereo Auxiliary inputs-great for connecting a CD player or line-level instrument-plus a Recording/Headphones output. Just press the Tuning Fork button (the harder you hit it the louder the sound) and you get an instant reference tone with support for flat tunings up to two semitones. Tuning up is a snap using the new Digital Tuning Fork. A separate Delay/Reverb processor lets you dial in anything from slapback and long delays to reverb and more (in addition to using one of the aforementioned modulation effects). All the essentials are included-from chorus and flanging to a phaser and tremolo effect. There’s no need to lug around pedals when the Micro Cube comes with six DSP effects. All you need is the Micro Cube for perfect tone. Roland’s COSM technology is the only modeling method that captures every nuance of the original amps-from the preamp and circuits to the speaker. Looking for the sound of Roland’s JC-120 Jazz Chorus or your favorite British combo amp? You’ll find those and more in the Micro Cube, thanks to seven COSM amp models. And the sound? It’s a Cube, so you know it sounds great! 7 Classic and Modern Amp Models A carrying strap is also included, allowing you to be heard just about anywhere you want. Using six “AA” alkaline batteries, you can play for up to 20 hours-thanks to the Micro Cube’s high-efficiency amplifier. The Micro Cube is the first Cube amplifier that runs on battery or AC power. ![]()
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