<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Battery-Chemistry on JOHN ANGEL NYC</title><link>https://johnangel.nyc/tags/battery-chemistry/</link><description>Recent content in Battery-Chemistry on JOHN ANGEL NYC</description><image><title>JOHN ANGEL NYC</title><url>https://johnangel.nyc/avatar.png</url><link>https://johnangel.nyc/avatar.png</link></image><generator>Hugo -- 0.167.0</generator><language>en-US</language><lastBuildDate>Wed, 14 Oct 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://johnangel.nyc/tags/battery-chemistry/index.xml" rel="self" type="application/rss+xml"/><item><title>ONYX Battery Chemistry Guide</title><link>https://johnangel.nyc/posts/onyx-battery-chemistry-guide/</link><pubDate>Fri, 14 Aug 2026 00:00:00 +0000</pubDate><guid>https://johnangel.nyc/posts/onyx-battery-chemistry-guide/</guid><description>Explains battery chemistries and emerging battery technologies relevant to ONYX builds, including energy density, power capability, cycle life, thermal stability, weight, and packaging.</description></item></channel></rss>