$39.99 for a Third Rail iPhone 4/4S Case and External Battery Combo ($89.99 List Price). Free Shipping and Returns.

Up to 56% Off
420+ bought

Product Details


$39.99 for a Third Rail Mobility Trio slim protective case with an external universal rechargeable smart battery (TRL1B1C) for iPhone 4/4S ($89.99 list price)


Third Rail Mobility Trio iPhone Case and External Smart Battery

Like its name suggests, the Apple-certified Trio wraps your iPhone 4 or 4S in a triple layer of protection and power. It starts with a slim hard-shell case, which hugs your phone like a koala bear with severe separation anxiety. It also morphs into a power case by clicking in the included Fuel universal 1250mAh lithium-ion smart battery. Despite its slender size, the Fuel universal battery packs enough power to recharge your iPhone as well as other USB-powered devices via a built-in micro-USB port and included cable.

  • Three-in-one combo: protective case, power case, and battery
  • Removable Fuel universal 1250mAh lithium-ion smart battery
  • Apple-certified product for iPhone 4/4S (phone not included)
  • Slim hard-shell case with a soft, antislip finish
  • Charge iPhones and other USB-powered devices individually or simultaneously
  • All Fuel smart batteries work with any other Third Rail cases
  • Charge and sync iPhone with case via an included micro-USB cable
  • Includes a USB adapter and user's manual
  • Weight:
    • Case: 0.85 ounces
    • Battery: 1.4 ounces
  • Dimensions:
    • Case: 4.96"x2.43"x0.46"
    • Battery: 3.29"x1.83"x0.27"
  • One-year warranty from Third Rail


How to get your goods: by purchasing this Groupon and providing your name and shipping address, your order is complete!

For questions pertaining to this deal, please visit the deal Q&A on this page. For post-purchase inquiries, please contact Groupon customer service.

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The Fine Print


Limit 3 per person, may buy 2 more as gifts. Free returns. Free shipping. Does not ship to AK/HI/Canada/Puerto Rico. Most orders are delivered within 2 1/2 weeks from the purchase date. Does not ship to PO boxes. See return policy. Must pay applicable tax and provide name and shipping address at checkout, which will be shared to facilitate shipping. 1 year warranty from Third Rail. Goods sold by Groupon Goods.

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.