A portable power station’s battery type may not seem very important, but in actuality it is a crucial thing to think about when choosing a power station. The battery used in a power station heavily plays a huge role in the product’s weight, size, cost, charging speed, and much more. Lithium-ion (Li-Ion), lithium-polymer (Li-Po), and lead-acid batteries are the battery types that are most often used for power stations like the Vault. The Vault has a very powerful Li-Ion battery, which usually charges up to three times faster than lead-acid batteries, and packs the most energy out of the three battery types mentioned above. On the other hand, Li-Po (lithium-polymer) batteries have less power than Li-Ion batteries, but can typically charge faster than the other two. Lead-acid batteries usually cost the least out of the three, but unfortunately, they often sacrifice charging speed, power, and a lightweight design as a compromise. If you want a faster charging and slightly more energy-efficient option, then perhaps a Li-Po power station is for you. However, those that want a lightweight, portable power station that can be used frequently should invest in a Li-Ion battery power station. The Vault is one of the most reliable and efficient Li-Ion power stations available, with an ultra-portable that can go with you anywhere to charge all your small devices in a pinch.