E740, E750 & E755 Battery?

[mef38]

Hello,

We're doing a little market research on behalf of Mugen Power to see what customers would like to see in a newly developed E740, 750 & 755 battery. What would you like? Basically we're looking at a full back battery that would attach using the holes in the back of the E740. What type of capacity would you like? Any wish lists here? Now's the time to mention it as the development stage begins.

Thanks,


MEF38 8)

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[SteveHoward999]

I'd love to see enough power in my 750 to run Wi-Fi for at least 6 hours.

It's possible to add other features to a battery? Like what? Room for a second SD or CF slot? :-) Built-in camera?

OK I am kidding, but I am serious about the amount of juice I't like. What does that equate to ? 3000 mV/Hours or whatever the units are?


Steve

[gt24]

I recently bought an e740 as a starter device and after I bought it I looked into PDA stuff. I got much more interested in these type of devices and currently I am interested in a keyboard (from somewhere... :)) and also different software.

I already tried to find a Mugen battery (hearing they are the best) not wanting to buy a fullback battery from Toshiba due to the high price ($120 ish...), although I suppose I could eventually spend that much on a battery... However, the Toshiba fullback battery most likely has been sitting for a long time, and thus wouldn't perform even at its' own specifications (which are... well... okish but not great for that price) Therefore, I am happy that your company is looking into making a battery for my device! (In fact, it made me register rather than lurk on this forum)

I bought my device for $140 and thus when I purchase upgrades, I keep in mind what I spent on this device. I do have issues with the iffy battery life on this device, ESPECIALLY with wifi, however I don't plan on keeping this device forever., yet when I give a friend this device, I would like it to be a somewhat great device, not an okish device so much...

One major thing with a backpack battery is that it must be the same dimentions as the Toshiba battery OR less, else my device will not fit in the crade at all. The width of the Toshiba full back is sizable though and I have seen other Mugen batteries that are not full backs... if I recieved a thin full back battery, then perhaps it would have the best of both worlds... thin and light yet also preserving a smooth back for the device, with a higher capacity.

I'm not sure how long the original Toshiba backpack lasts, some sites mention 22 hours... with wifi and full frontlight, does it do that though? Eitherways, I think 12 hours is good enough, I am near a power source every night, but not necessarily during the day.

With my current battery (toshiba standard), I get ok power... about 4 hours, using NO frontlight and NO wifi, which doesn't help me much. On wifi I get around 2 hours battery life... an issue... and I still didn't toss in the frontlight on lowest level... So that means I have to carry around a USB Power cable or an AC Adaptor and hope I find a way to charge my device in order to use my device over two hours... that and find a good lamp! A battery would be helpful.

Anyways sorry for the rant on my first post, but just wanted to say that I and I'm sure many other e7xx users are very interested.

Thanks,
gt24

[Gerry548]

I'd like to see an expanded capacity battery, and also I think there is a market for a standard replacement battery for 740,750 in lieu of the over-priced Toshiba replacement.
E755 owner,
Gerry

[gregmills]

I'd love to third party batteries come on the market. Obviously I want more power for less money ;)

[SteveHoward999]

I'm not sure how long the original Toshiba backpack lasts, some sites mention 22 hours... with wifi and full frontlight, does it do that though? Eitherways, I think 12 hours is good enough, I am near a power source every night, but not necessarily during the day.

I believe that is going to be true for light use only ... backlight turned down, no use of Wi-Fi. IIRC the Toshiba backpack is a 2000 mA/Hour device ... or if the number is wrong, the capacity is double the standard battery.

I'd like to see 3 or 4 times the standard battery life. I would love it if the replacement was not the full size of the backplate, but instead fits nicely into the standard slot. As it stands, the PDA fits nicely in my pants/shorts pocket and is comfortable to hold for hours while I read. I am uncertain that the full-sized expansion battery would be such a good size.


Steve

[gt24]

Sidenote, when my device dropped today, doing a hard reset in the process (DANG IT), I thought of something... the battery in my device might be shook up a bit in a drop, therefore causing a very small loss in power, enough of an abnormality to cause a hard reset (because the backup battery would never engage).

Perhaps a somewhat harder to loose battery, or a battery that keeps contact with the terminals better would be cool...

I don't know how possible that is, but it might be something to look into... If the battery lock doesn't hold the battery in as well as the origional Toshiba battery, there could be issue. If it holds it better, it might solve my issue... at least if that is the problem...

<edit> Turns out that there may be a problem with an internal connection that was the issue, as a brighthand forum thread says... still, a secure battery would always be nice.

http://discussion.brighthand.com/showthread.php?s=d0ae65b4d190b4226cfc8443cf7031ff&threadid=109778
</edit>

[korngold]

3000mAh or more would be nice. Or, better still, have a "2 battery" solution, whereas 1 battery fits the "standard" opening and a second, full-back, high-capacity battery "locks in" to the holes on the back of the unit & connects to the new "standard" battery. Also, add an external charger for the whole pack or just for the extended part, and a nice leatherette case for the extended pack.

This solution would be cool for a number of reasons:
1) The "standard" sized battery in the pack would replace the OEM battery, which is probably pretty low or depleted in most of the devices that are currently in use

2) You could recharge without losing your data, and while you're still using your device (i.e.: you could be away with your PPC while the extended batt recharges)

3) The user could still use cases and other items that would be rendered obsolete by the implementation of a single, giant battery.


So, this way, you'd have a new standard battery, and an extended pack, all in one package. Throw a low pricetag on it, and you'd have a winner.

Another great add-on would be some sort of software program that checks the battery power on your today screen (and does it accurately). I have tried a few, and none seem to work. That would be a cool "bonus" to include. :wink:

Let me know if you need a beta tester, too. :D

[SteveHoward999]

So, this way, you'd have a new standard battery, and an extended pack, all in one package. Throw a low pricetag on it, and you'd have a winner.

Another great add-on would be some sort of software program that checks the battery power on your today screen (and does it accurately). I have tried a few, and none seem to work. That would be a cool "bonus" to include. :wink:

Let me know if you need a beta tester, too. :D


I love the idea of being able to piggy-back the extended battery without ever removing the (upgraded) standard-sized battery. This would help to reduce my concerns about bulking the machine up too much.

I also love the idea of the accurate battery gauge, but I wonder if it is simply difficult to accurately measure remaining power - same as it is almost impossible to get an accurate fuel gauge in a car or a motorcycle.

Oh - and ditto on the beta testing ;-)


Steve

[mef38]

Thanks everyone for your excellent comments; and keep them coming. Mugen Power representatives have already reviewed some of the comments here and will continue to review them. I'll definitely let you know, as the design prcess continues, where we are at.


MEF38 :)

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[gt24]

I REALLY love the standard + backpack idea, A TON, that is if the following can be achieved...

A) If I get the standard battery, I still want a smooth back on my device... I don't want "open to the air" metal contacts, weird dents in the battery, and alike... I'm not so much against the idea of inserts being put in a standard battery to protect any odd contacts, as long as those inserts STAY put.

A way of doing a battery to battery connection is perhaps to have the backpack insert into slots (on the left and right hand side or just one in the center) of the standard battery. Also, consider the fact that if something like this is done, I could potentially keep the backpack battery with future devices by plugging that backpack into a standard mugen battery for another device...

If slots are used, then perhaps they could slide into place in the standard battery going up a premade slot, with a small lip before the back of the device, thus the only place the insert could fall is into the device itself. I rarely if ever remove my standard battery, so I would not mind a system such as this.

B) The backback better STAY connected to the standard battery. So, implement a GOOD battery lock to keep the two pieces of battery together please!

The battery gadge on the today screen may be impossible due to a lack of an adequate connection into the device... but how about a gadge on the battery itself that consists of many lights that are turned on when a button is pressed (Macintosh uses this feature... but I don't think they have a monopoly on the idea since Duracell does it too! :))... the battery lights would be more like a sanity check than a very darn useful feature, but it may be desired... Otherwise, I don't know how battery monitoring could be possible...

With a backpack, the lights can be shown at the top of the device, and with the standard battery, it could be shown at the bottom of the device (since the battery is the bottom of the device), but note that light placement here can and will be blocked by Toshiba's expansion pack. Do know that Macintosh uses a light system to show if some of their batteries have a charge, but I find it to have too few lights for my use.

One last thing, ditto on the beta testing for me.

[Stephen Beesley]

I certianly like the idea of another power option. For myself what I would like to see is an extended full back battery, but in a slimmer form factor than the Toshiba one.

Of course it would also need to look like it "belongs"!