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.

Batteries

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

Batteries

Single-Use Battery

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

RE-Battery

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

Crystals

Energy Crystal

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

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

Lapotron Crystal

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

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

Storage Devices

Plasma Energy Storage Device (PESD)

High-tech storage solution.

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

Accumulators

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.

Quantum Accumulator

Small, fast and cute.

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

Big Quantum Accumulator

6 Quantum Accumulators together in a parallel configuration.

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

Energy Packs and Belts

Energy Packs

Can be used in Chest or Bauble Body slot.

BatPack

The smallest of the Pack.

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

Lappack

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

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

Quantum Pack

A lappack with a Lapotron squeezed in.

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

Energy Belts

Can be used in Pants or Bauble Belt slot.

Industrial Belt

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

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