CowBoom offers the Energizer PowerSleeve for iPhone 4, model no. AP1201, for $19.99 with $3.74 for shipping. That’s ties our mention from last week as the lowest total price we could find by $12. This non-slip and fingerprint-resistant silicone case charges an iPhone via its built-in 1,500 mAh rechargeable battery; it detects when the phone is low on battery life, then automatically charges it.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s