Battery Fragments

Open World
Area	Source
(EP42) Doomed Washington, D.C.
Construct of Doom Area	- Thrall (Ultraviolet Corps)
Ultraviolet Doom Area	- Thrall (Ultraviolet Corps)
(EP43) Death Metal Washington, D.C.
Lincoln Memorial Hub; (Mission Rewards)	- Dark Knights: Large Loot Cachefrom; - Bat-Bot Charger; - Lady Blackhawk; - LexCorp Cache; - Oan Terminal; - Phantom Stranger; - Wonder Woman; - Dark Knights: Loot Cachefrom; - Jimmy Olsen; - John Stewart; - Miss Martian; - Nubia
Echoes of Umbrax Area	- Thrall (Ultraviolet Corps)
(EP44) Infernal Kahndaq
Palace Stronghold Hub; (Mission Rewards)	- The Sins of Black Adam: Large Loot Cachefrom; - Doctor Fate; - Metamorpho; - Wizard Shazam
(EP48) Apokoliptic Gotham City
Gotham Tech District	- Harley Quinn vs. Apokolips: Loot Cache from Nightwing
Lava Pool Generator	- Harley Quinn vs. Apokolips: Loot Cache from Big Barda
Warzone	- Harley Quinn vs. Apokolips: Loot Cache from Harley Quinn

Trivia

This item was introduced with game update 19.
Since game update 94 the item is also available from R&D component vendors.
Starting from Hope Burns Bright (possibly before), Battery Fragments obtained are a new item - the "old" version has an extra "Experience: 20" in its item description absent from other components. Vendors and previous episodes/chapters now drop the new version, but both can be used for R&D recipes.

Instance	Source
TIER 6
SoBA: The Treachery of Black Adam	- Neron
JLDC: Town Square Theater	- Cursed Wonder Girl
TIER 7
Apokolips: New Genesis Undercity	- Lashina; - Hammer Harleen

Instance	Source
TIER 1
Coast City (Alert)	- Crazed Amon Sur; - Kyle Rayner; - Atrocitus; - Final Boss Fight
TIER 6
SoBA: Godseye Pyramid	- Monstrosity
JLDC: Cursed House of Mystery	- Cursed Swamp Thing
Brainiac: Hall of Doom	- Legion of Doom
TIER 7
Apokolips: Besieged Clock Tower	- Stompa; - Mad Harriet & Stompa

Instance	Source
TIER 6
JLDC: Cursed Themyscira	- Ethereal Hecate
Brainiac: Hall of Justice	- Booster Gold / Red Tornado / Supergirl
Brainiac: The Command Ship	- Lex Luthor & Superman; - Brainiac [ Final Fight]
TIER 7
Apokolips: Subjukator Construction Site	- Granny Goodness

Area	Source
House of Legends
Main Observation Deck	- The Atom (Vendor)
Diamond District Police Station(H)
Info Area	- Doctor Kennedy (Vendor)
Midtown Police Station(H)
Info Area	- Miss Turner (Vendor)
Watchtower(H)
Magic Wing	- Sentinel Ware (Vendor)
Meta Wing	- Doctor Ruyle (Vendor)
Tech Wing	- LN Research Bot (Vendor)