JK1
Headphoneus Supremus
- Joined
- Oct 12, 2003
- Posts
- 3,212
- Likes
- 200
Why are you so focused on long batterie life? When I am on a flight , I simply use a mobile batterie loader.
Why? There have been enough times when I wanted to listen, and I ran out of power, or forgot to charge the player when it was out of power. The longer the battery life is, the less likely I am to run out of power. I have portable battery packs, but rarely carry them with with me, as carrying that and a usb cable is annoying. Also around 30% of the power in the power pack is lost as heat as the player battery is recharged. Having a player use an inexpensive, easy to find swappable battery that can be charged two or more outside the player is a much better solution.
I could carry a second small player to use when the first player runs out of power, however that is also an awkward solution.
Having a player with from 40 to 80 hours of battery life seems like a much better solution. Having more than around 80 hours of battery life might mean that the player is starting to become larger than I want. It seems like a relatively compact player can be made with up to around 80 hours of battery life if it uses efficient circuitry. The Sandisk Clip Sport runs for 25 hours on a 220 mah battery. It is somewhat limited in functionality though. I am just using it to contrast lossless players with inefficient circuitry that get around 9 hours or so using a 3000 mah battery, which consume power at around 40x that of the Clip Sport. I want a player somewhat more capable than the Clip Sport, which integrated card contents with main memory, and supports a database of at least 20,000 songs. It doesn't need to power 300 ohms headphones though, as I plan to use efficient earphones between around 16 and 32 ohms or so.