Terra Supreme Battery vs PowrSync

Terra Supreme Battery is the companion app for batteries equipped with our eBM (electronic Battery Monitor) chip. Pair your battery once by scanning its QR code, and the app shows you what you care about: • Live voltage, temperature, and state of charge • A low-voltage alert before your battery lets you down • Warranty status and manufacturing details, always on hand Switch between multiple batteries with a tap — handy for anyone with more than one vehicle, boat, or piece of equipment. Your data stays on your phone. No account, no sign-in, no cloud. REQUIREMENTS A Terra Supreme battery with eBM (sold separately), an iPhone with Bluetooth, and iOS 14 or later.

PowrSync keeps you on top of the battery life of every device that matters to you. Pair a phone or tablet in seconds by scanning a QR code, then see its exact battery level and charging status right from your own device — no cables, no guesswork, no more "my phone died" surprises. Once paired, readings stay current on their own. When a paired device's battery changes, or it's plugged in or unplugged, your device is updated right away. Need an instant check? Request a fresh reading on demand and get the latest charge level within seconds. Stay informed without lifting a finger. Turn on smart alerts to be notified the moment a paired device runs low, finishes charging, or goes quiet — PowrSync flags any device that hasn't reported in over 24 hours so you're never left wondering. And the built-in 24-hour history graph shows how each device's battery has trended through the day, so a quick look tells you the whole story. PowrSync is built to be private and lightweight. There are no third-party analytics and no ad trackers — only the minimum needed to run the service (your email and a device identifier). You can delete your account and all associated data at any time, directly from Settings. Key features: - Pair devices instantly with a secure, single-use QR code - Real-time battery level and charging status for every paired device - On-demand refresh — pull the latest reading whenever you want - Smart alerts for low battery, full charge, and offline devices - 24-hour battery history graph for every paired device - Clean, dark interface designed for a quick glance - Privacy-first: no ad trackers, no third-party analytics - Full in-app account and data deletion Great for keeping an eye on a child's iPad, a family member's phone, a spare device, or your own second phone. Terms of Use (EULA): https://powrsync.lya3hc.site/terms