Instruction: Generate an answer to the question by utilizing the information contained in the document.

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Question: Battery life? How long does the built-in battery last?  And how much does it cost to replace once it dies?
Document: e260 screen is bigger, more colorful and brighter3.) e260 battery is replaceble, no need to throw your unit away when the battery dies (since apple ipod would charge too much to send it in and get battery etc).4.) Price per Storage ratio. Nano cost $175 for 2GB, e260 was $140 for 4GB (prices at my purchase time) Thats TWICE AS MUCH for LESS MONEY.5.) e260 is more scratch and break resistant. Built better.6.)
The Apple IPod interface is unsurpassed but I do not want to use ITunes. However, this unit's menu interface is acceptable. The menus are fairly intuitive but needing some definition. Finding the user manual on the manufacturer's web site was a challenge. The unit excels at battery life and sound reproduction. Its small size is great for the mobile person and the display is decent. I like the ability to replace the battery when it dies. Would I buy it again?
As shipped, the e260 only takes 2gb cards but after installing Rockbox it will take the larger 4gb and up micro SDHC cards.The player hardware is of course rock solid with great sound and long battery life but the firmware it comes with is almost an afterthought. What was Sandisk thinking? A few mouse clicks to replace the firmware however brings this device up to a 5 star rating. I am so glad I bought this player now.
Bought a refurb for $50 on ebay after my wife got one. My last player was a creative zen which wouldn't last more than a couple hours of battery life, and if you left it sit for a couple weeks the battery would die by itself. I can leave this sitting around for months and it will still retain it's charge. Battery lasts a long time during use too.
It's an MP3 player... nothing really shocking about it. It works really well with Rhapsody and will save you boucoup dollars if you have a large appreciation for music. Long battery life... not much else to say... it plays music!
This is a great product if you were more for your money compared to an iPod.Pros - attractive look, long battery life, user-friendly, can add memory externally, thin and light designCons - Can't make more than one playlist, small buttonsSome have complained of freezing, but I have not experienced that yet in the 6 months I had it. I lost mine on a trip and just ordered another one because I loved it so much!
But then again, the only other MP3 players I've used are the iPod Nano and the Creative Zen V. But this is better than those for a number of reasons. I'm just going to break it down into pros and cons:Pros-Very similar to the iPod Nano but a lot cheaper.-The battery is easily removable. So if the battery ever dies you can easily replace it yourself.-Very durable.
You cant beat what you get for the money in this product. For a low cost you can increase the memory with a micro sd card. When the battery goes you can replace it with a new one and not have to throw it away. It has a good solid feel and does not feel cheap. Sound is decent and the features meet my needs. I am in my fifties and dont feel that I have to give in to peer pressure and buy an IPOD.
I am very pleased with my MP3 player. I have loaded over 650 songs on my 4 GB unit and have room to spare. The radio seems to work well too.I like the fact that I can replace the battery if it wears out. The controls are confusing and the Sandisk's instructions are poor. Other players which cost more have better controls. I actually phoned Sandisk's help number and they were very good - they solved my confusion.
This can get irritating especially if you're on a journey and you're not carrying your laptop around. The battery life is pretty sturdy. I ususally use Windows Media player for syncing my music to it. Its pretty easy and simple. The earplugs shipped with it are a nice fit.I guess at its cost, its a good bet!
Answer: The built-in battery should last a couple years, like most lithium-ion batteries.  A replacement battery from Sandisk costs $20 MSRP, and you can easily replace the battery yourself, all you have to do is unscrew the 4 screws on the back and switch the batteries.