Efficient

For other uses, see Efficiency (disambiguation).

Efficient
Release date	25 January 2016 (Update)
Gizmo type	Weapon, Armour, Tool
Maximum rank
Standard	3
Ancient	4
In-game description
Charge drain rate for this item is reduced by 6% per rank.
Infobox • Talk page

Efficient is an Invention perk that reduces the charge drain rate of the item it is on. It can be created in weapon, armour, and tool gizmos. It is the standard version of the Enhanced Efficient perk.

As Refined Anima Core and tier 90 power armour do not directly use charges from the universal charge pack, the Efficient perk has no effect on their degradation mechanics.

Reduction

Rank	Reduc.
1	6%
2	12%
3	18%
4	24%

Sources

Material		Rarity	Perk ranks with X materials
			Standard gizmo					Ancient gizmo
			1	2	3	4	5	1	2	3	4	5	6	7	8	9
	Ascended components	Rare	1	2	3	3	3	0	1	2	3–4	4	4	4	4	4
	Crystal parts	Common	0	0	1	1	1–2	0	0	0	1	1	1	1–2	1–2	1–2
	Shifting components	Rare	1	2	3	3	3	1	1–2	2–3	4	4	4	4	4	4
	Healthy components	Uncommon	1	1–2	1–3	1–3	1–3	0	1	1–2	1–3	1–4	1–4	1–4	1–4	1–4
	Classic components	Ancient	0	0	0	0	0	1	1–2	1–4	1–4	1–4	1–4	2–4	2–4	2–4

Suggested gizmos

Gizmo layout	Possible perks	Approx costs
	Efficient 3 Rapid 2–3 (3 is rare) Open in calculator: Tool	3,616,305 5x Shifting 723,261 each See RS:Material prices for details on how prices are approximated.
	Efficient 3 Ultimatums 3 Open in calculator: Weapon, Armour	3,616,305 5x Shifting 723,261 each See RS:Material prices for details on how prices are approximated.
	Efficient 1–3 (3 is rare) Venomblood Other possible perks: Committed Open in calculator: Armour	247,576.25 5x Healthy 49,515.25 each See RS:Material prices for details on how prices are approximated.
	Efficient 4 Undead Slayer Other possible perks: Profane Enhanced Efficient Ultimatums Talking Open in calculator: Ancient armour	6,902,105.46 3x Ascended 703,548 each 1x Living 24,054.28 each 2x Shifting 723,261 each 2x Classic 36,402.04 each 1x Undead 3,248,081.1 each See RS:Material prices for details on how prices are approximated.
	Efficient 4 Genocidal Other possible perks: Ultimatums Undead Slayer Enhanced Efficient Open in calculator: Ancient weapon, Ancient armour	7,763,577.18 3x Ascended 703,548 each 1x Bandos 885,526 each 2x Shifting 723,261 each 2x Classic 36,402.04 each 1x Undead 3,248,081.1 each See RS:Material prices for details on how prices are approximated.

Update history

This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!

• patch 22 February 2016 (Update):
  • The Efficient perk has been improved to provide a 6% charge drain reduction per rank (up from 2%).

• update 25 January 2016 (Update):
  • Added to game.