Archive for the ‘battery’ Category

Tech Focus: Monitoring Battery Temperature by Using a Data Acquisition System or Specialised Battery Test System

Wednesday, January 19th, 2022

In today’s electronics applications, batteries power nearly all of our portable electronic devices. Batteries also serve as emergency power backup systems on large premises. And all-electric vehicles use large cascading battery packs to meet the expected power for the required performance.

In this guest commentary, Bernard Ang from Keysight Technologies shares his insights on specialised battery testing.

Batteries are the key to our portable/mobile electronic gadgets in this digital era.

Batteries are the key to our portable/mobile electronic gadgets in this digital era.

Battery packs need the required specific power (W/kg) to be able to dispense enough current to achieve the electric vehicle speed performance.

They also need the required specific energy (Wh/kg) to achieve longer runtime or travel range.

Why is it important to monitor battery temperature?

Most rechargeable batteries today are lithium ion and have an operating range between 15 °C and 35 °C at which their full performance and capacity kicks in.

  • If the battery and its ambient temperature is below 15 °C, you may experience sluggish electrochemical reactions within the battery and as a result, lower battery performance and reduced charge capacity.
  • If the battery or battery pack operates above 35 °C in ambient temperature, battery degradation can accelerate over time. As a result, you may notice shorter battery life, non-uniform aging due to thermal gradients, greater exposure to safety issues, and higher life cycle costs. At extremely hot temperatures, batteries can break down and cause leakage, smoke, fire, and even explosions.

The power map chart below shows the power limits of your lithium-ion battery or battery packs across the temperature range.

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Review: Belkin BoostCharge Magnetic Wireless Charger Stand 7.5W

Monday, December 13th, 2021

Tech-U-Can-Use (TUCU): Need a wireless charging stand to charge your iPhone 13 or iPhone 12 so you can continue using the phone while it’s still charging? Guest reviewer Jennifer Lee checks out the 7.5W BoostCharge magnetic wireless charger stand from Belkin for her iPhone 13 Pro Max.

#tech4xmas: This BoostCharge wireless charger stand from Belkin makes a suitable Christmas present for iPhone 12 and iPhone 13 owners.

#tech4xmas: This BoostCharge wireless charger stand from Belkin makes a suitable Christmas present for iPhone 12 and iPhone 13 owners. Photo credit: Jennifer Lee.

The magnetic wireless charger stand is MagSafe compatible for iPhone 13 and iPhone 12.

The wireless charger stand is available in black or white.

The wireless charger stand is available in black or white.

With MagSafe, it was easy to place my iPhone 13 Pro Max onto the stand – it snaps into place and there is no worries that the placement is misaligned.

There is an LED safety indicator that comes on when the charging commences.

The magnetic attachment is strong enough to hold the iPhone securely.

The stand is great for zoom calls or FaceTime – it holds the phone upright either in portrait or landscape mode.

A 20W USB-C Power Delivery 3.0 power adapter is included in the box.

In addition, the charge pad is protected by a Belkin Connected Equipment Warranty.

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TUCU: Belkin BoostCharge USB-C PD 3.0 PPS Wall Charger 25W

Saturday, December 4th, 2021

Tech-U-Can-Use (TUCU): My mom’s in-box power supply for her phone died on her, so I got her a replacement wall charger – as a replacement and upgrade.

The Belkin BoostCharge USB-C PD 3.0 PPS Wall Charger 25W is an intelligent charger for those new phones that doesn’t include chargers in the box, as a second charger at the office, or simply as a spare/backup charger.

The Belkin BoostCharge USB-C PD 3.0 PPS Wall Charger 25W is an intelligent charger for those new phones that doesn’t include chargers in the box, as a second charger at the office, or simply as a spare/backup charger.

The main features of Belkin’s BoostCharge 25W wall charger can be gleaned from its lengthy name.

It’s a wall charger, it can charge at up to 25W max power, it uses USB-C, it is PD 3.0 certified, and it is equipped with PPS technology.

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New Arrival: Xiaomi Launches Mi 10T, Mi10T Pro & Mi 10T Lite Smartphones

Tuesday, September 29th, 2020

Xiaomi is launching its new Mi 10T smartphone, together with its Mi 10T Pro and Mi 10T Lite versions. Also launching is the Mi Watch and Mi 65W Fast Charger with GaN tech.

The Xiaomi Mi 10T and its variants offer good cameras, AdaptiveSync displays, powerful processors and long-lasting batteries.

The Xiaomi Mi 10T and its variants offer good cameras, AdaptiveSync displays, powerful processors and long-lasting batteries.

The prices and availability will be announced at a later date.

All three versions of the Mi 10T phones are 5G-capable and come with dual SIM.

The Mi Watch includes over 100 watch faces, camera remote function, native emojis on notifications and voice control.

The Mi Watch includes over 100 watch faces, camera remote function, native emojis on notifications and voice control.

Xiaomi is also debuting the Mi Watch – its first smartwatch for the global market.

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New Arrival: Canon Launches New Full-Frame Cameras & Lenses

Thursday, July 9th, 2020

Canon has just launched two new full-frame mirrorless cameras in the EOS R lineup: the EOS R5 and EOS R6; as well as three RF-mount prime lens and its first super-telephoto L zoom lens. Price & Availability below.

Shoot high-resolution, professional-level still images and HDR PQ HEIF 10-bit video with the Canon EOS R5 and EOS R6.

Shoot high-resolution, professional-level still images and HDR PQ HEIF 10-bit video with the Canon EOS R5 and EOS R6.

The EOS R5 and EOS R6 are aimed at advanced amateurs and professionals, and are designed to provide a high-quality, high-speed shooting experience.

The four RF-mounted lenses are:

  • RF85mm f/2 IS STM
  • RF600mm f/11 STM
  • RF800mm f/11 IS STM
  • RF100-500mm f/4.5-7.1L IS USM

The three RF-mount prime lenses are fixed focal length lenses which will appeal to advanced amateurs, especially those focusing on wildlife or portrait photography.

The super-telephoto L zoom lens allows users to shoot even further with its focal length of 500mm.

Price & Availability below.

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New arrival: Lamch & Co introduces Flip plug by OneAdaptr

Tuesday, March 14th, 2017

For travellers that hate the bulkiness of the British 3-pin plug, the Flip plug allow the plug to be folded into a compact flat form factor for packing away into the luggage bag. Prices below.

The Flip comes in three designs to cater to varying power needs. From left: Flip Duo (S$39), Flip Quad (S$59), Flip Power (S$69).

The Flip comes in three designs to cater to varying power needs. From left: Flip Duo (S$39), Flip Quad (S$59), Flip Power (S$69).

The Flip is the result of a successful Kickstarter campaign which raised £28,115 from 1,140 backers, exceeding their initial goal of £15,000.

Measuring in at a mere 18mm when folded, the Flip is only a third of the standard British plug’s thickness.

When folded, the pins are hidden away when not in use, protecting your devices and other items from scratches when stored together with the Flip.

To use, simply press the auto-release button, lock the pin and you are ready to go.

The Flip comes in three designs to cater to varying power needs.

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New arrival: Mophie Powerstation line of universal batteries

Tuesday, May 31st, 2016

Available in multiple battery sizes (1X, 2X, 3X, 5X, 8X), the powerstation line provides dynamic, on-the-go charging options with up to 15,000mAh. Prices below.

Users will enjoy up to 54 additional hours of talk time, 59 additional hours of web browsing, 59 additional hours of video playback, and 272 additional hours of audio time.

Users will enjoy up to 54 additional hours of talk time, 59 additional hours of web browsing, 59 additional hours of video playback, and 272 additional hours of audio time.

Mobile battery case maker Mophie has launched its next generation powerstation lineup of universal battery solutions for mobile devices.

This marks the release of mophie’s slimmest collection of universal power products to date.

These quick-charging devices sport an aluminum finish, and integrate with the company’s mobile power management app, mophie Power.

A photo posted by John Tan (@tech4tea) on

Also showcased at the launch in Suntec City in Singapore was this waterproof batterycase from Mophie. The JuicePack H2PRO for iPhone 6 & iPhone 6 plus are now available in black for S$189 in Singapore. Waterproof, dropproof, dustproof, dirtproof. 2,750mAh battery, for 14hrs additional talk time, 10hrs additional web browsing, 11hrs additional video playback, 50hrs additional music playback.

The mophie Power app allows users to concurringly monitor and manage the battery life of their smartphone and bluetooth-enabled powerstation units (5x and 8x models only).

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New arrivals: Energizer Energi-to-go XP20000 portable charger

Tuesday, April 7th, 2015

The new charger has 20,000 mAh and 3 output ports for laptops, tablets and smartphones. Available in Singapore now – S$249.

The XP20000 portable charger has a rated output of DC 19V, 3A (for charging laptops), DC5V, 2.1A (USB port for charging tablets), and DC5V, 1A (USB port for charging smartphones).

The XP20000 portable charger has a rated output of DC 19V, 3A (for charging laptops), DC5V, 2.1A (USB port for charging tablets), and DC5V, 1A (USB port for charging smartphones).

Weighing less than 500 grams, the light and portable Energizer Energi-to-go XP20000 contains a super high density battery which can power smartphones with another 40 hours of battery life, tablets with another 20 hours of battery life, and laptops with another 6.5 hours of battery life.

The XP20000 comes in white and measures 19.5 x 16.5 x 11 cm.

The XP20000 comes in white and measures 19.5 x 16.5 x 11 cm.

Besides laptops, tablets and smartphones, the XP20000 supports video and digital cameras, mobile gaming devices, mobile Bluetooth headsets, and many other mobile devices.

It is safe for commercial travel, making it suitable for the mobile worker with a laptop and multiple mobile devices, and for sharing amongst friends and families on vacation.

The Energizer Energi-to-go XP20000 takes 3.5 hours to charge, and can be charged while discharging to other devices.

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Review: ASUS Fonepad 8 (FE380CG) Android phablet

Monday, February 16th, 2015

The ASUS Fonepad 8 is one of the largest and most affordable phablet on the market. At only S$299, it provides you with all the features and functionality that you need out of a tablet/phone combo.

ASUS designed the Fonepad series with affordability in mind. The Fonepad 6 and Fonepad 7 were released in 2013, while the Fonepad 8 were launched in late 2014.

ASUS designed the Fonepad series with affordability in mind. The Fonepad 6 and Fonepad 7 were released in 2013, while the Fonepad 8 were launched in late 2014.

The dual-SIM gives you much needed flexibility especially when you’re travelling and wants to slot in a cheap local SIM, but still wants to remain contactable on your regular number.

Two features which impressed me was the dual-SIM capability and long battery life of the ASUS Fonepad 8 phablet.

It is easy to slot in/out the two micro-SIM cards as both slots are in a special compartment on the left side of the phablet, along with the microSD card slot, that allows you to expand the 8 or 16GB internal storage of the Fonepad 8 by up to another 64GB.

Top right corner of the Fonepad 8.

Top right corner of the Fonepad 8.

The phone supports 3G for both SIM cards but not 4G/LTE.

I found usage of dual SIM straightforward like in other dual-SIM Android phones.

The internal, non-removable 4,000mAh battery provided long hours of usage without worry of running dry.

Even with intense usage and video viewing, the Fonepad 8 easily lasted an entire day and then some.

On my more typical day, there was usually at least 20-30 percent battery left at the end of the day.

Fonepad 8 is available in four colors—black, white, red and gold. White and gold models include white bezels, while the black and red models feature a black fascia. Out of the box, the pre-loaded ZenUI color scheme matches the device’s back cover color, which is plastic and features a non-slip diamond-pattern coating.

Fonepad 8 is available in four colours—black, white, red and gold. White and gold models include white bezels, while the black and red models feature a black fascia. Out of the box, the pre-loaded ZenUI color scheme matches the device’s back cover color, which is plastic and features a non-slip diamond-pattern coating.

ASUS rates the battery life to 14.2 hours of Wi-Fi Web browsing, 12 hours of HD video playback, and 21 hours of 3G talk time.

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New arrivals: FantaStick BA700 selfie stick w shutter & battery

Monday, January 19th, 2015

The FantaStick BA700 is an extendable smartphone monopod with detachable remote shutter and external power bank. Available at S$89 at ante@Tangs Orchard Level 3, EpiCentre, EpiLife and istudio.

The FantaStick BA700 is available in 6 vibrant colours – Black, Blue, Green, Pink, Red and Orange.

The FantaStick BA700 is available in 6 vibrant colours – Black, Blue, Green, Pink, Red and Orange.

The 3-in-1 FantaStick from Ye!! comes with a built-in wireless Bluetooth Remote Shutter and 2,800mAh external power bank.

The FantaStick BA700 measures 2.8 x 2.8 x 113cm and weighs 280g.

The FantaStick BA700 measures 2.8 x 2.8 x 113cm and weighs 280g.

The FantaStick has an adjustable phone holder that fits all phone width ranging from 5.5cm to 8.5cm and is padded with soft EVA for securing the phone in place without scratching it.

The FantaStick has a swivel head for multiple-angle shoots.

The connection point of the phone holder features a ¼”-20 male thread that is also compatible with compact cameras or camcorders.

The stick is constructed in 5-sections, which can be extended from 25cm to 113cm, great for capturing photos or videos overhead.

The 2,800mAh lithium-ion rechargeable battery keeps the Bluetooth remote shutter running with a good store of power to spare for charging your smartphones, tablets and other devices via its 2.4A fast-charging output port.

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