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Review: Palm Pre 1400mAh Extended battery, Test Results

It's known for a fact that a full charge of Pre's standard 1150mAh battery will get you through a whole day, just barely. What if you're in a situation where you needed just 30 or 40 minutes more on your phone? Yeah, you could always buy another standard battery as backup for $49.99 $37.95. OR you can purchase an extended battery, like Amzer's 1400mAh extended battery for the Palm Pre. It adds no extra bulk, and offers up to 20% more juice!

We got one of the 1400mAh extended battery for review, and I will have to say that after going through a few testing, the battery does offer about 15%-18% more juice (depending on what you're running on the phone). And it doesn't take much longer to get a full charge either. Read on for our mini review and testing results of the standard and extended battery for the Pre.

Before anything, as you can see above, is the testing results of both extended and standard battery. The 1400mAh extended battery running Pandora with EVDO outlasted the standard battery by about an hour. Which comes up to about 15% increase of battery life. Not much of a difference in charge time either, which is a good thing.


As mentioned, it does not add any extra bulk, almost identical form factor as the standard battery, and weights about the same too.

This battery is TouchStone compatible.


Get this extended battery if you want more juice out of your Palm Pre. Fits right in your Pre with no need for a new battery door. It costs $49, only 13 dollars more than the standard battery in our store

[Thanks to Michael L. for recording the charging time]

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Reader Comments (9)

Great review! Just bought one of the store!

July 31, 2009 | Unregistered CommenterPrelove

Looks cheap. Has anyone heard or purchased any batteries from this company before? Will it last through Constant touchstone charging for over a year? Will it overheat?
Thats whats gonna matter in the long run.

July 31, 2009 | Unregistered Commenterhappy?


Been using one for the past month. So far so good. No heating problem too.
Thanks for the comment.

July 31, 2009 | Registered CommenterPreThinking

@ Philip

Very glad to hear. Im thinking about buying one.

August 1, 2009 | Unregistered Commenterhappy?

Is this the next best thing before upgrading to one that requires a new back (without being touchstone compatible)?

I would just hate to buy this and then a week from now the other company offer a backplate for the other batteries that currently dont support the touchstone (since I have two - one at home/work).

August 7, 2009 | Unregistered Commentersampson

looks cheap..if palm wanted a extended batter released they would make one

August 10, 2009 | Unregistered CommenterBi

Right, that's my biggest concern - the backs. I like the standard palm back. Does this battery fit with the standard backs? What are people's experiences with the larger batteries and different backs?

September 21, 2009 | Unregistered CommenterMatt

Am I missing something? Is this battery actually compatible with the Touchstone or not? Specs talk about being compatible with a "cradle", but no actual mention of working with the Touchstone anywhere.

October 21, 2009 | Unregistered CommenterHellloNNNewman

The 1400mAh is compatible with the Touchstone charging dock.

October 21, 2009 | Registered CommenterPreThinking

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