A4C offers The Sharper Image Auto Power Charging Station and Tire Gauge for $7.95 with free shipping. That's $17 off list price and the lowest total price we could find. The charging station is capable of charging up to four devices at once and plugs into your car's cigarette lighter. The gauge measures tire pressure up 50 psi. Deal ends March 9.
power-innovation via Amazon offers the Maxboost Pulse 10,000mAh External Battery Pack with Digital Display in Piano Black for $38.95. Coupon code "WOOTBATT" drops it to $27.99. With free shipping, that's $11 off and tied with our mention from two weeks ago as the lowest total price we could find. It's compatible with a range of devices and features a digital display and two USB ports.
Newegg offers the iCanonic iCruiser 12,000mAh Dual USB Power Pack, model no. ICR-12000B, for $28.99 with free shipping. That's $3 below our December mention and the lowest total price we could find by $6. It features dual USB ports for simultaneously charging two devices, three adapters, and a carrying pouch.
Tanga offers the Lenmar Dual USB 4.2A Car Charger, model no. AIDCU4, for $4.99 plus $2.99 shipping. That's tied with last month's mention and the lowest total price we could find by $2. It's equipped with a fuse to protect from overcharging, and both ports have 2.1A of power (most duals have 1 port at 2.1A and the other at only 1.4A). This lets you charge two tablet devices at once.
eCase via Amazon offers Prime members the KMASHI Mini 2,800mAh External Battery Pack with Light in Black or Hot Pink, model no. KMAX-807, for $9.79 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $5.22.) That's $16 off list and the lowest total price we could find. It's compatible with devices that charge via USB and purports to provide 1,000 charge/discharge cycles.