Changes

Power armour is fully sealed, isolating the wearer from the outside environment and protecting him from gas weapons and harsh atmospheres. Should a penetration occur, resulting in a leak of the environmental sealand possible exposure to the [[vacuum of space]], a quick application of repair cement is sufficient to restore its sealed environment (at least temporarily), though more advanced patterns such as [[artificer armour]] may have automated fibre re-weaving or similar systems.{{Fn|60b}} It also commonly includes numerous auxiliary systems such as communicators and auto-senses. The backpack contains the main power plant, environmental system and additional stabilizers.{{Fn|1}} The primary power source is a fusion generator which is capable of lasting forever with the proper care. This is important, as should a Space Marine's power armours motive system completely fail due to critical damage, the armour is very heavy and becomes a hindrance slowing the marine down making it difficult so much as to move around in unpowered armour.{{Fn|60b}} The backpack also houses a small [[Stacked Atomic Chain]] battery, powering the suit's life-support, air recycling, fluid recovery and various automated medical functions.{{Fn|65}} Still, should a marine require it, power packs also contain spare energy cells and a solar converter to recharge them.{{Fn|61}} All armour may further be augmented by various artefacts, relics and enhancements such as [[pauldrons]] and [[greaves]].{{Fn|1}} The most important part of the armour scheme of Power Armour are its [[ceramite]] armour plates. These are individually up to an inch thick and are honeycombed to help dissipate energy and localise damage suffered.{{Fn|65}} Thanks to its ceramite and [[adamantium]] exterior, Power Armour is almost invisible to heat detection.{{Fn|64}}