Looking after Lithium Batteries

Battery care.

To be honest I’ve learned over the years that batteries perform better at room temperature, this actually isn’t the case with Li-ion batteries, they like to be really cold, especially when you store them for a few months. So seeing as a new battery pack can cost hundreds of pounds I did some quick research and this is what it boils down to.

1. You should only charge a lithium battery to 100% when you need to use the battery for extended periods that day or the day after. Try to keep the charge between 20% and 80%
2. NEVER NEVER NEVER let the battery drain below 10%.
3. Around the 30 cycles, (one cycle is 80%-20% of battery power) discharge the battery as low as you dare. So at the 5% mark give it a good long charge.
4. Store the battery at 40%, DO NOT charge it to 100% and store it. Storing the battery is for 3 months or more.
5. Freeze the battery! I know right, it doesn’t make sense. Freeze the battery at roughly 30% charge in a carrier bag so it can breath a little.

To summarise.
Keep the battery level between 80% and 20% for normal every day use. Discharge the battery every 30 charges, and store it for long periods at 40% charge. If you can freeze it when you store it then even better.

Li-ion should last for 300-500 charges, and if you follow the above then it should last nearer the 500 charges.
Source: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

Photos from My Holiday in Fort William