Newer Technology (NewerTech) and Other World Computing (OWC) today introduced a high-capacity replacement battery for all first- and second-generation iPods. The 2100mAh Lithium-Polymer (Li-Polymer) replacement battery is the highest capacity iPod battery on the market and provides 70 percent more capacity than Apple’s standard batteries, according to the two companies. The US$39.95 battery comes with two non-scratching installation tools and a detailed instruction manual.