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Toshiba Satellite P775 Battery all-laptopbattery.com

After ensuring the laptop booted properly, I powered it down and took off the back cover. Nine screws and a lot of clips hold it in place, but once removed, you have access to the M.2 solid-state drive (SSD), two slots of RAM, and Wi-Fi card. These can all be easily replaced down the line, so you can save a couple hundred dollars now on smaller storage and less RAM and wait for a third-party deal to come your way. Unfortunately, there’s no hot-swappable battery, but I did get about eight hours from a charge when going about usual tasks. When in dire straits, the USB-C charger can get it back up to about 75 percent life in an hour.The laptop is respectably thin at 0.74 inches (18.8 mm), and you still get a wide selection of ports that can handle older and newer devices. There’s no Thunderbolt 3 or Ethernet, but you do get two USB-C and a Mini Ethernet port that’s compatible with Lenovo’s extension cable. HDMI 1.4b makes it easy to hook up a display, and two USB-A 3.1 ports mean you won’t be looking for a dongle for your older accessories.

A fingerprint reader for Windows Hello is set into the palm rest, and while it looks like it would hit your palm while typing, it’s placed strategically to avoid any rubbing. It logged me in quickly and easily every time, with no need for a password. A discrete Trusted Platform Module (dTPM 2.0) security chip is also included for added security, and you can upgrade to a Core i5 vPro processor (CPU) for remote management.In everyday usage, the L380 seems like a competent worker. I didn’t notice any hiccups from the 8th Gen Core i5 CPU and 8GB of RAM, and testing with Geekbench and PC Mark came back with standard results. I saw a single-core 3,945 and multi-core 9,775 score with the former test, and a score of 2,762 with the latter test. These are average results, and while you won’t beat the more expensive ThinkPad models, you shouldn’t be disappointed with what you get here.

Finally, the keyboard, touchpad, and TrackPoint system are what you’d expect from a ThinkPad. The keys are slightly cupped, they have a lot of travel, and they make a satisfying click. The appropriately-sized touchpad uses Precision drivers for the full range of Windows 10 gestures, and the TrackPoint system remains intact, with three physical buttons and red pointer. It all works as it should, and comfortably at that.Like a lot of Lenovo’s cheaper laptops, the ThinkPad L380 suffers from a display with low brightness and poor color reproduction. The brightness issue is a bigger deal here, with the display hitting just under 250 nits. It has a matte finish that helps cut down on glare, but in a well-lit room you’ll probably find yourself wishing for a few more increments of brightness. Testing color accuracy, the L380 hit 66 percent sRGB and 49 percent AdobeRGB, both pretty low results. This isn’t a huge deal on a business-oriented laptop — as long as you don’t plan on any photo or video editing — but it’s still something to keep in mind.

The other main grievance I have is with the SATA SSD. Here Lenovo’s gone with a Samsung PM871b, with a faster PCIe option available. In testing, I got a 545 MB/s read speed and a 528.9 write speed, which is average for budget devices. The great thing, though, is the ease with which you can swap out the SSD down the line for something far faster.Other than the dim display with poor color reproduction and the slow SSD (which can be upgraded at checkout or easily swapped out after purchase), Lenovo’s ThinkPad L380 has a lot to like. Its 13-inch size hits the sweet spot for many people, there’s a good selection of ports that will cover accessories for the next few years, and it’s built well, true to the ThinkPad line. It’s also priced competitively, opening it up to a large audience that can’t splurge on the higher-end X- and T-series ThinkPads. All-day battery life and versatile USB-C charging ports means most days you can leave your charger behind when heading to the office.

Who should buy this laptop?
If you’re in the market for a business companion and don’t mind a display without great color reproduction, the ThinkPad L380 is a cost-effective laptop for students and professionals. It’s durable, it’s the right size to carry around, and it has great battery life to get through a work (or school) day.Most of the electronic gadgets we use are powered by lithium-ion batteries, and very occasionally, those lithium-ion batteries can malfunction. When they do, they have a tendency to burn or explode, and the results can be catastrophic. Exhibit A: Security camera footage from a plastic fabrication company in Letchworth, England.The video shows an HP Envy laptop catching fire when left on charge overnight, eventually burning down the owner’s entire office. As spotted by Motherboard, some models of HP Envy laptops are under recall by HP due to faulty batteries, which “have the potential to overheat, posing a fire and burn hazard to customers.”

Steve Paffett, the owner of the plastic fabrication company and also the laptop, told his local newspaper that he “was sat at that seat earlier that day and I swear it would have taken my face off or killed me.” He said he was woken up by the intruder alarm for his office, which was triggered by the fire. He logged onto the CCTV app and saw the fire, and called emergency services before running to the office and fighting the fire with extinguishers. By the time the firefighters arrived, the damage was done.“The ground floor is ruined, all the stock is written off – luckily none of it caught fire, but it’s just covered in smoke – the whole building is filthy and reeks. The fire and ambulance crews were amazing and could not have done more under the circumstances. I’ve already been given a small insurance payment – just enough to continue to trade – but it’s not quite the same thing as being able to get on with your day,” Paffett told The Comet.

It’s not something you often give a lot of thought to, but the modern consumer laptop battery is a pretty advanced piece of technology. Not only does it pack several dozen watt-hours of energy into a relatively small and lightweight package, but it features integrated diagnostic capability to make sure all those temperamental lithium cells are kept in check. Widely available and extremely cheap thanks to the economies of scale (unless you try to get them from the OEM, anyway), they’re a very compelling option for powering your projects.Of course, it also helps if, like [teliot] you have a bunch of the things lying around. For reasons we won’t get into, he’s got a whole mess of Acer AL12x32 battery packs which he wanted to use for something other than collecting dust. He had the idea of hooking one up to a solar panel and using it as a power supply for some ESP8266 projects but wanted to be able to talk to the battery for status and diagnostic information. After studying the Smart Battery System (SBS) protocol the batteries use, he was able to come up with some code that lets him pull 37 separate fields of information from the pack’s onboard electronics using his ESP8266.

It took some fiddling with a multimeter to figure out which pin did what on the eight pin interface of the battery. Two of the pins need to be shorted to enable the dual 12 VDC pins to kick in. Technically that’s all you really need to do if you want to utilize the battery in a low-tech sort of way. But to actually get some information from the battery, [teliot] had to identify the two pins which are for the System Management Bus (SMBus) interface where the SBS data lives.Once he knew which pins to talk to the battery on, the rest was fairly easy. SBS is well documented, and the SMBus interface is very similar to I2C. Like all the cool kids are doing these days, his code publishes the battery info to MQTT where he can plot it and get finely grained info on the performance of his solar power system.

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