View Full Version : Battery care

03-15-2010, 08:36 PM
Different types of batteries require different care. Some have memory and must be fully discharged while others can be charged any time without effecting the performance and life of the battery. I haven't found any reference in the 550D instructions on the topic. Anyone know for sure how to get the best life out of the LP-E8?

03-15-2010, 11:02 PM
Battery care is specific in most cases to the battery chemistry. I believe the battery chemistry for the LP-E8 is Lithium Ion Polymer. That should give you something to google.

Richard J. Johnson
03-15-2010, 11:10 PM

I googled it for you.:happy:

03-16-2010, 12:37 AM

I googled it for you.:happy:

I love how fast things get done around here. Thanks Richard.

I Googled around a little and found the answer I was looking for about these lithium batteries.

Here is the link

Here is the section I was interested in knowing about/

A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges.

Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.

So the bottom line to keep your Canon battery in good shape is charge it often, but let it run dry every 30 charges. (Yeah right, for us most of the time the battery runs dry.)

Thanks guys, problem solved.