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Seidio Innocell Extended Life Battery for T-Mobile HTC G1

3.0 out of 5 stars 40 customer reviews

Was: $44.95
Price: $38.42 & FREE Shipping on orders over $49. Details
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Only 4 left in stock.
Ships from and sold by Amazon.com. Gift-wrap available.
  • Fits in existing space so no replacement door is needed
  • Made from the highest quality Japanese cells
  • Capacity: 1400mAh
  • To obtain the full capacity of your battery, leave the battery/your phone on the charger for an additional 2-3 hours after the charging indicator turns green or the battery status shows full.
  • For use with: T-Mobile HTC G1
  • More capacity in the same form factor
  • Perfect replacement for your original battery
3 new from $38.42
Special Shipping Information: Due to federal and international regulations, this product can only be shipped within the continental United States.

$38.42 & FREE Shipping on orders over $49. Details Only 4 left in stock. Ships from and sold by Amazon.com. Gift-wrap available.

Product Features

  • Size (LWH): 2.2 inches, 1.7 inches, 0.25 inches
  • Weight: 0 ounces
  See more technical details

Product Description

Need an extra kick of battery life to power your HTC G1 through the end of the day? Our Innocell Slim Extended Life Batteries are manufactured with premium Japanese Lithium-Ion/Polymer cells and provide the quality long-lasting performance you seek in the existing stock battery compartment. The slim extended battery does not require the use of a replacement door and can provide up to 10-15% more battery life than the stock battery, depending on individual usage.* * All battery life claims are dependent upon usage patterns, network configuration and many other factors; actual results will vary.

Product Information

Product Dimensions 2.2 x 1.7 x 0.2 inches
Item Weight 2.4 ounces
Shipping Weight 2.4 ounces (View shipping rates and policies)
ASIN B001ONTLFC
Item model number BASI14TMG1
Customer Reviews
3.0 out of 5 stars 40 customer reviews

3.0 out of 5 stars
Best Sellers Rank #710,248 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
#7,647 in Cell Phones & Accessories > Cell Phone Accessories > Batteries & Battery Packs > Replacement Batteries
#709,103 in Electronics > Cell Phones & Accessories

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
I ordered the Seidio Innocell 1400 Extended Life Battery for T-Mobile G1 due to the factory OEM battery not lasting more than 5hrs of normal use and 3hrs of heavy use.

The Battery was delivered in excellent condition and the packaging was department store like quality. No complaints there.
Performance of the new Seidio Innocell 1400 Extended Life Battery was a big improvement. 13hrs later of normal use I am now down to 32% to where the factory battery would have been dead long ago. Before I used my phone with the new battery I charged the new battery with the phone off for 12hrs then turned the phone on and charged for an additional 1hr before taking it off the charger.

Over all it's a burden having to buy another battery when you already have a working one to begin with from a brand new phone but in this case the Seidio Innocell 1400 Extended Life Battery already is more efficient than the factory OEM 1100mah battery preinstalled giving me more time to enjoy my phone as I should.

I recommend all G1 users to buy this battery in place of the factory and use the factory battery as a backup.
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Verified Purchase
Everyone knows by now that the standard G1 battery only lasts a few hours before it dies.

With the standard G1 battery I would charge it every night before bed and I would take it off the charger every morning at 8:00am (when I leave for work) and by 11:00am the battery was down to 50%. And I would have to charge it 2-3 times a day.

DAY 1:
Now with the Seidio Innocell battery I took it off the charger at 8:00am and by 11:00am the battery was at 97% (this is great!!!)And by 3:00pm the battery was at 61% (keep in mind I haven't charged it all day) And by the time I got home from work at 6:00pm the battery was at 19% (which never happens with the standard G1 battery)

DAY 2:
Now I'm starting to worry. I took it off the charger at 8:00am and by 11:00am the battery was at 85%; By 3:00pm the battery was 50%; By 6:pm it was down to 15%. It doesn't seem to be working as well as it did yesterday. I hope the battery doesn't get weaker over time. But it does last much longer than standard G1 battery. Another plus: you don't need to have that "ugly big back cover"!

I would recommend this battery to everyone who wants to keep there G1 slim. But if you don't mind the "ugly big back cover" get the 2600 battery.
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Verified Purchase
Don't bother with this puppy. It shows some improvement over the OEM for the first few weeks and then loses much of its advantage.
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Verified Purchase
I ordered this battery from Amazon after doing some research. BIG improvement over the factory phone and even came with some juice. The catch before you use it regularly:CONDITION IT!! I installed it and lt it run out of the juice it had and then I powered down the phone and let it charge for a full 10 hours overnite. I then have been letting it discharge fully till it auto shuts off. After three or four cycles I can get a whole days use with gaming, email, texts, surfing, sporadic GPS. I only use 3g when i really need it as edge is pretty quick on it and I never use WIFI. At the end of the day ill have around 20% before I go to bed. Make sure you install these apps from Market: POWER MANAGER, and Curvefish's toggle switches apps for settings which I keep on the slide over screen out of view. I gave it four stars because you have to condition it and tinker with it to get good battery life. However it is a great product and I recommend it if you dont want the 2600mah fatty. One quick note: The battery has some effect on the Battery meter as it doesn't show the true battery life, it can show you have less and you actually have some more. My meter was showing empty and i still was making calls, playing games, and surfing for up to three-fours hours. *UPDATE 10/4/09* Battery still performing top notch I found that if I switch to airplane mode while at work I will have 95%-100% when I finish my shift.
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Verified Purchase
I got this battery about two months ago and was very excited for first couple of weeks. It really gives you about 4 more hours of play time with G1 without the need of the charger. However now it looks like the battery is starting to loose it's advantage, it only lasts for about 12 hours of light use after taking it off the charger and the most annoying thing is that after showing the charge of 50% it would go down to red crossed battery in about one hour. I emailed Seidio support about this but didn't get any reply back. I'm going to try that 2600mAh battery next.
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Verified Purchase
Apparently I bought this 14 months ago, which is why it doesn't get 1 star. The OEM battery on my G1 was shot after not quite two years (I bought the phone in December 2008) and so I got this to replace it. At first the battery seemed great, but now it can't hold the charge for any time at all if I'm using the phone. It can stand by for quite a while, but any use kills it immediately.
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Verified Purchase
Seido seems to be the only supplier of a useable battery for the G1. At this late stage in the phone's life, all other batteries I have found are new-old-stock (and won't hold a charge) or are refurbished junk that won't hold a charge. As of December 2012, this is the only battery I can find from any source that holds a charge. Thank you, Seido.
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