Portable Battery Chargers & Power Banks

Finding the Right Portable Charger

With so many options available, it helps to match the charger to how and where you'll use it. A slim mini power bank in the 5,000–10,000mAh range is ideal for everyday carry — light, pocketable, and capable of getting your phone through a full day. If you're heading somewhere remote, traveling internationally, or spending extended time off the grid, a 20,000mAh portable charger gives you more charges between refills without much added bulk.

Rugged and Specialty Power Banks

For outdoor use, construction, or other demanding environments, the Dark Energy Poseidon line offers indestructible portable chargers rated to withstand drops, dust, and water. These aren't your average travel power banks — they're built for people who need reliable backup power when conditions get rough. We also carry models like the NEBO Slim+ that combine a rechargeable pocket light with a portable charger, giving you two tools in one compact package.

Portable Jump Starters with Built-In Power Banks

Several products in our lineup from Battery Tender serve double duty as both vehicle jump starters and portable chargers. The 1000A, 1500A, and 2000A models can jump-start a dead car battery and charge your USB devices — making them a smart addition to any vehicle emergency kit or road trip bag.

Frequently Asked Questions

What does mAh mean on a portable charger?

mAh stands for milliamp-hours and measures how much energy the battery stores. A 10,000mAh power bank can typically charge a smartphone two to three times. Higher mAh means more charges before you need to refuel the power bank itself — but also usually means a larger, heavier unit.

How much does a portable charger cost?

Portable chargers range from around $20–$40 for compact everyday models to $80–$150 for high-capacity or rugged power banks. Jump starter/power bank combos and portable power stations sit at the higher end of the range. Paying more typically gets you faster charging, greater capacity, or a more durable build.

Are portable chargers lithium batteries?

Yes — nearly all portable power banks use lithium-ion or lithium polymer (LiPo) batteries internally. Some higher-end models use LiFePO4 (lithium iron phosphate), which offers a longer cycle life and better thermal stability. The battery type affects how long the charger lasts over time, not how it charges your devices.

How long does a portable charger last?

Most portable power banks last three to five years or several hundred charge cycles before capacity noticeably degrades. LiFePO4 models tend to outlast standard lithium-ion. Storing your charger at a partial charge and away from extreme heat extends its lifespan.

Can I bring a portable charger on a plane?

Generally yes, but only in carry-on luggage — not checked bags. Most airlines follow TSA/FAA guidelines allowing power banks up to 100Wh (roughly 27,000mAh) without special approval, and up to 160Wh with airline permission. Check your specific airline's policy before traveling, especially with higher-capacity models.