Making the Perfect Battery
People usually go for store-bought batteries because they are less expensive and easier to use, but when performance is critical, custom work is the way to go. A worn-out lead-acid battery in a midsize electric ATV prompted one builder to replace the factory pack and start over using LiFePO4 cells. The chemistry has some obvious advantages: it has a better energy density than traditional lead-acid batteries, provides consistent power delivery even when the pack is low on charge, and is far safer than many other lithium varieties.

Spectrum Slit Lamp See Radio Waves
This lamp appears to be a typical wall light, but what truly sets it apart is its flickering, pulsating glow. Rootkid, the creator of this brilliant idea, refers to it as the Spectrum Slit. Every time it blinks or flashes, it is caused by radio waves in the air, Wi-Fi signals clogging up your home network, Bluetooth traffic jostling for space, and even your microwave churning away at 2.4 and 5GHz.

LimX Oli First Scalable Autonomous Deployment Robots
A room gradually filled with a faint hum as silverish figures begin to stir from their immobile position. LimX Dynamics, the Shenzhen-based company that is developing those full-size humanoid robots, this week presented an excellent video of its Oli model performing what they describe the world’s first completely practical autonomous deployment. Whether or not this makes it the world’s first, 18 units emerged from their shipment boxes, got up on their own, walked in formation, and finished with a little coordinated routine that gives you a good idea of what manufacturing floors with robot teams would be like.

Anker Nano Charger with Smart Display
Anker’s Nano Charger with Smart Display, priced at $29.99 after clipping the on-page coupon (was $39.99), is here to serve as a much-needed wake-up call in a world where we typically only care about our phones when they run out of juice in the middle of the day. This ultra compact 45W plug is more than simply a power delivery device; it’s a whole new ballgame. A small screen incorporated into the front allows you to monitor the current charging session, the speed in Watts, the battery percentage, the device temperature, and even the device being detected.

Anbernic RG G01 Controller
Anbernic, the company behind a host of inexpensive retro gaming handhelds, is now targeting the high-end wireless controller market with the RG G01. This is a significant move because they’re basically going head-to-head with 8BitDo, and their Ultimate series in particular, which has been running the show in the premium gamepad space for a while now, but it appears Anbernic isn’t just trying to catch up; they’ve created a controller that’s jam-packed with features you wouldn’t normally expect to see.

Lexar TouchLock Portable SSD Launch
Portable drives simply have a dreadful habit of disappearing, as they slide out of a pocket or off a desk and end up in a dusty old drawer. However, the true issue arises when the next unlucky soul who discovers it may simply walk in and access everything on the drive. Lexar has developed a really clever solution, the TouchLock. This handy small SSD combines strong encryption with a quick unlock method that uses your smartphone, so the drive remains locked until you’re ready to let it go.

Boston Dynamics Spot Cam 2 Reveal Robot
Boston Dynamics’ Spot travels throughout industrial locations on four sturdy legs, collecting data that used to need actual humans to chase after. The company has just gone a step further by introducing a second-generation camera system dubbed Spot Cam 2. This new version is based on the same foundation as the previous Spot Cam+IR, but it includes clearer vision, a broader angle of view, and new ways to combine multiple types of sensors, which is exactly what it needed.