While we've already seen the first — a 3,000mAh battery add-on from popular accessory maker Mophie — we can confirm that it is available now in the U.S., at Verizon, for $79.99. That's the same price as those from Incipio and Tumi, except with a 36% premium in battery capacity. It's also slightly thicker as a result: 0.35 inches compared to 0.27 inches.

The Mophie Mod has another advantage: it can be separately charged via USB-C, which negates the need to have it attached to the Moto Z itself to juice it up, making it far more useful in a pinch. Battery add-ons have proven the most popular category in the Moto Mods ecosystem, according to Motorola. Over 40% of those purchased to date have been batteries, and the company says that in an average week, 37 hours are spent with a battery add-on attached to the back of the phone. Many people leave their battery packs attached to the back of their phones on a semi-permanent basis. Verizon is offering the Pixel 4a for just $10/mo on new Unlimited lines