The Natural Philosopher wrote:
Ian Stirling wrote:
The Natural Philosopher wrote:
Jonathan Schneider wrote:
writes:
So should I go for 2 batts when I can cope with one in case the batt.
fails etc or can anyone out there with experience of li-ion advise
otherwise.
Doesn't quite answer the question but Li-Ion is a poor battery
technology to use in a power tool. Whether or not you use them much
your new batteries will be fairly shagged within a few years.
Hmm.
Li-ion
- don't self discharge. Typically 90% charge retention over 6 minths
Do degrade - increase in effective series resistance, and capacity over
time, especially if kept at full charge.
A lot less than nickel.
Typcially several years.
10-20% or so a year.
Matches the measured capacity degradation of several idle laptop Li-ion
batteries that I measured a couple of years ago.
Keep in fridge if not in use.
********.
The ones in the fridge have degraded lots less.