The Batteries are item-based EU storage. This generalization includes Batteries, Crystals, Storage Devices, Accumulators(collectively called "batteries" as well), Energy Packs and Energy Belts, as well as other item-based EU storage not yet conceived of.

When used as baubles, unlike the normal, block-based Energy Storage, the Batteries can charge items of lower tier but cannot charge items of higher tier. For example, you can charge a Drill with a PESU but cannot charge Quantum Armor with an Accumulator.

All items in this category, except for Single-Use Batteries, can be used as buckles (Belt slot) in Baubles.

So cheap, you won't even notice you just spent all your copper! Can overcharge Machines(but not Storage Units), be stacked, but cannot be charged.

• Storage: 1,000 EU
• Transfer Rate: Single-Use (puts as much EU as it can into the storage and disappears)
• Tier: LV

The simplest way of storing EU. Can be rightclicked to charge items of the same tier in hotbar.

• Storage: 10,000 EU
• Transfer Rate: 100 EU/t
• Tier: LV

Pretty red and pretty cheap (if you ignore the diamond).

• Storage: 100,000 EU
• Transfer Rate: 250 EU/t
• Tier: MV

Blue and cheap (there's no diamond in the recipe, move along).

• Storage: 1,000,000 EU
• Transfer Rate: 600 EU/t
• Tier: HV

High-tech storage solution.

• Storage: 50,000,000 EU
• Transfer Rate: 25,000 EU/t
• Tier: EV

Smaller storage than other batteries with similar amount of iridium, but they are tier 1 and have a massive transfer rate, making them perfect batteries for moving Storage Units around and insta-charging machines.

Small, fast and cute.

• Storage: 900,000 EU
• Transfer Rate: 1,000 EU/t
• Tier: LV

6 Quantum Accumulators together in a parallel configuration.

• Storage: 5,400,000 EU
• Transfer Rate: 6,000 EU/t
• Tier: LV

Can be used in Chest or Bauble Body slot.

The smallest of the Pack.

• Storage: 60,000 EU
• Transfer Rate: 100 EU/t
• Tier: LV

Sadly, it's not 6 Lapotrons strapped onto a jetpack.

• Storage: 300,000 EU
• Transfer Rate: 250 EU/t
• Tier: MV

A lappack with a Lapotron squeezed in.

• Storage: 1,200,000 EU
• Transfer Rate: 1,000 EU/t
• Tier: HV

Can be used in Pants or Bauble Belt slot.

3 batteries on a belt. Doesn't get simpler than that.

• Storage: 30,000 EU
• Transfer Rate: 100 EU/t
• Tier: LV