Accessory Review: Seidio 1500mAh and 2600mAh Extended Batteries for the BlackBerry Curve

Seidio 1500mAh and 2600mAh Extended Life Batteries for the BlackBerry Curve
By David Boyd on 3 Mar 2008 03:30 pm EST

Make Your Curve Last All Day and Night and Day and Night and... 

Let’s start this with a simple question… Are there any CrackBerry addicts out there??? I thought there might be a few. If any of you are like me, you are constantly on your CrackBerry; checking email, using BlackBerry Messenger, playing Brickbreaker… well you get the point. We just can’t put the thing down, and all that use causes our battery to wear down fast.

Sure, you can carry around your travel charger, or plug it in while in your car, but to me, that’s just a hassle. I want a better solution. I want more power! I need an extended battery.

I have had great success in the past with Seidio products, so I knew right away that I wanted to demo out the extended batteries they had to offer. There are two different batteries offered by Seidio in the CrackBerry Store; the first is the Seidio 1500mAh OEM-Size Extended Battery for $44.95, and the second is the Seidio 2600mAh Extended Battery for $49.95.

The 1500mAh battery is OEM sized, and will not change the appearance of your blackberry, while the 2600mAh battery is larger, and does add about 4-5mm to the back of your device, and comes with a new battery cover to accommodate that size difference. Let me go into more detail on each.

Battery Assortment
From L to R: Seidio 2600mAh w/ cover, OEM battery, Seido 1500mAh

Seidio 1500mAh

According to Seidio, this OEM sized battery will provide about 35% more power than the 1100mAh battery that shipped with your Curve. I can typically get through a day with about 25% battery power left over, so I figured an extra 35% power could possibly get me through two days.

The battery arrived in the typical Seidio packaging I have come to know; nothing fancy, just clear plastic. I removed the battery and gave it a full nights charge and starting my testing the next morning.

I like the fact that this battery added no extra size to my BlackBerry. That is a huge selling point for me. I went on about my day, taking calls, answering emails, chatting with friends, etc…

Nighttime had come, and it was time to see where the battery level indicator was…. Drum roll please…….. Survey says…. 25% ! I was a little surprised by this, I guess I was hoping for 50% remaining and a guaranteed two days of battery life. But after about a week and a half of use, I have found my results to be about the same every night. Having 25% power left on this battery will still last longer than having 25% power left on the OEM battery, but it’s not enough to get me two days use with only one charge.
The ideal use of this battery is for the CrackBerry Addict who uses their BlackBerry’s battery sucking features daily, but still remembers to plug in each night. All those who use their GPS, WiFi or have a lot of apps running in the background using up data will really appreciate it. This battery ensures your BlackBerry makes it to midnight instead of cutting it close at 8:30pm, AND remember, it accomplishes this in stealth mode – no added size required.

Seidio 1500mAh OEM-Sized Battery
Seidio's 1500mAh battery packs more punch!

Seidio 2600mAh

It's time to bring in the big gun. I opened the packaging for the 2600mAh battery and removed it as well as the new battery door. Seidio advertises this battery to provide 140% more power than the OEM battery, and only extends the back of your device by about 4-5mm’s. The nice thing about the new battery door is that it is coated with the same rubberized coating as the Seidio Rubberized Case that I like so much. It also has a speaker opening at the top to allow for better sound from your BlackBerry.

I put the battery in, installed the new battery door, and let it charge for the night. Morning arrived, and it was time to let the testing begin!

I went through all the same things as I had done with the previous battery, and at the end of day one, I found that my battery was at 80%! I was amazed. Obviously no charge was needed that night, so I kept going into day two. After another full days use, I was down to 55% at the end of the night. At this point, I am very impressed with the battery, and continue into day three. After a third full day of use, I was left with 20% battery power! Now I probably could have gotten another half to full days use out of that battery, but I just don’t like to push it. I was extremely pleased with having three full days use with just one charge.

I continued using and consistently found that I could easily get three days use out of the battery. I quickly got used to the extra size that had been added on to my device, and actually found that it made holding the device somewhat easier, as there was there to grip. The only downside I found was in case selection. As I had previously stated, I am really a huge fan of the Seidio Rubberized Case, and they do not offer one that will fit with this battery.

Seidio's 2600 Extended Battery for the Curve
The 2600mAh batter comes with its own battery door

Seidio's 2600 Extended Battery for the Curve
Extra-size added, but its worth it if you're a BlackBerry Abuser!


If the aesthetics of your device are a big concern for you when shopping for an extended battery then I’d suggest getting the 1500mAh battery to give you just that little bit extra power to get you through the day. Now if you are a power user that doesn’t mind the extra size added to your device, then the 2600mAh battery is definitely the way to go. I was extremely impressed with it, and I would imagine that the average user can probably get 3-5 days use out of a single charge.

Seidio 1500mAh OEM Sized Extended Battery for BlackBerry Curve Review Summary:
Seidio 1500mAh OEM Sized Extended Battery for BlackBerry Curve
Seidio 1500mAh Extended Battery Ratings


  • OEM Sized
  • Gets you through the day, even if using battery-draining apps and functions


  • Wish it would get me through two full-days of use. Still a recharge every night battery

Buy Now:
Seidio 1500mAh OEM Sized Extended Battery for BlackBerry Curve

Seidio 2600mAh Extended Battery for BlackBerry Curve Review Summary:
Seidio 2600mAh Extended-Size Battery for BlackBerry Curve
Seidio 2600mAh Extended Battery Ratings


  • Lots and lots and lots of power


  • Added size to the device, though you do get used to it!

Buy Now:
Seidio 2600mAh OEM Extended-Size Battery for BlackBerry Curve

Reader comments

Accessory Review: Seidio 1500mAh and 2600mAh Extended Batteries for the BlackBerry Curve


I have never tried the 2600, but had the 1300 for my 8300 before they released the newer and bigger 1500 and the 1300 was awesome and still is after using it for months. I can only imagine the 1500 is better. Depending on usage I would think you could get 2 days out of the 1500 under moderate usage.

Im a newbie to BB and I just purchased a Curve. You guys are complaining about not making it through two days. Try a Moto Q9M that I had previously where the battery only made it through half a day on a full charge. When I got my Curve I was astonished that the battery made it through one day. You guys are taking this thing for granted, LOL.

well said. if a full charge lasts you for more than a day, it's better than 90% of what's out there. enjoy it for what it's worth instead of hating it for what it's not.

Hi David,

Thanks for the great review. I have been thinking about getting either the 1500 or 2600 battery for my 8320 for a while. I also get about 20-40% by the end of each day.

The 'interesting' way Seidio priced their 1500 stopped me. Can't justify the $5 difference or the 5mm increase in the thickness :)

Just one question, why do you way that the 1500 one is better than the stock one? Both end up with 25% after day 1.


"Nighttime had come, and it was time to see where the battery level indicator was…. Drum roll please…….. Survey says…. 25% ! I was a little surprised by this, I guess I was hoping for 50% remaining and a guaranteed two days of battery life."

As far as I can tell, that was for the 1500 one :)

Yeah, I think for David both his batteries (OEM and 1500mAh) we're coming at 25% by day's end. But 25% of the 1500mAh is still a lot more juice than 25% of the 1000mAh or 1100mAh OEM battery.

I have a brand new 1500mAh Seidio battery right here..going to give a test. I have been using the 1300mAh Seidio battery in my Curve for months now and it's always powered me through the day and well into the next day. Like the comment above said, the 1500mAh should be even better.

That's exactly right. Why that happened???? Could just be a coincidence, who knows, but like Kevin said... 25% left on the 1500 is still much more power than 25% on the OEM. In my opinion, they are both good batteries to give you some extra power, but if you don't mind the size, the 2600 is well worth the extra $5 it costs.

Hope that helps.


I purchased the Seidio 1500mAh battery the minute I saw it. I charge it every second night. I pull it off the charger at 7 in the morning and plug it in around midnight the following day with about 20% left to go. I have my Blackberry in my holster when not in use so this probably helps the battery last longer.

Instead of looking at "25% left over on the 1500mAh is still more than the OEM 1300mAh", why not look at the useage.

They both use-up 75% at the end of the day, that would tell me both the battery-cell-size etc... are identical.

His review is misleading and confusing on that part.

200-400 mAh is not going to make any good or noticeable difference, especially for $45. It might get you an extra hour or two.

I think I would be sacrificing wear and tear on my phone for battery life through the 2600. What are the chances Seidio makes a follow up case good enough for prolonged use

Ok, so I have a brand new 1500mAh in my Curve....

I charged it up last night (March 4th), and pulled it off the charger this morning (March 5th) at 8am.

It's now 8:15pm, over 12 hours later, and I'm still at 80%. We'll see how long I can get out of it. These batteries typically get better over time, but right now I'm impressed... stay tuned. Will keep updating this post over time.

7:39AM, March 6th - Coming up on 24 hours, and the battery is still at 60%. At this rate should be able to make it through until tonight, which means good for two day's use. Will keep watching and see how it goes.

3:05PM, March 6th - Still at 50% battery life. Been using the berry a lot today too. Should make it through until bedtime tonight for sure at this rate. Should be 2 full days use.

11:40PM, March 6th - Down to 10% battery life. Used my BlackBerry on the phone a LOT this evening, which sucked backed the juice. Will have to charge tonight (though it might make morning if put into standby). Either way, it made two days of normal use. I think if you're a heavy WiFi or GPS user (which David who wrote the review is), you might have trouble making two full days, but should alway finish a single day plenty strong. Definitely a lot stronger than the battery the Curve ships with, so a worthwhile investment in my book! Plus these batteries should get stronger after a few chargers...will see how that goes.

So Ill be getting my BB Curve soon and I know Ill need a bigger battery bc Im always going to be on the phone surfing the interent and using as many apps as possible.

Do I go with the sleeker 1500 or power house the unit and get the 2600 with the bigger back?

I cant decide?!?!?!

If you look at it as 25% remaining of an 1100mah battery is about 275mah and 25% of a 1500mah battery is 375mah, so the 1500mah battery will last a little longer. On top of that the Blackberry only reports in 5% increments and I don't know if they round up, down, or how they do it but it is possible that the 1100mah battery may have been at 23% and rounded up while the 1500mah battery may have been at 27% and rounded down. No way to tell.

I have heard comments that the size of the back for the 2600 battery makes it easier to hold. Does the phone with this battery and new back still fit well into a standard holster? Also, how much weight does it add to the phone?