Dell replacements (from Dell - quote just arrived) are £100 each, they might be refurbs (because Dell don't make them any more) and have only 90 day warranty. Using non-Dell, much cheaper, equal spec'd, 1yr guaranteed batteries may invalidate rest of laptop warranty if Dell can prove I used a non-Dell part in the machines!
There are 10,000s of thousand of forum posts across the 'net about Dell building obsolescence into their batteries - people have taken them apart and discovered that the individual Li-ion cells charge just fine, but the Dell circuitry prevents them from being charged or detected as charged (if they're charged outside of the normal mechanism). How can Dell get away with that?! It's just madness...





