Rating: 
Summary: Everything most people could ever want.
Review: As a preface, I am a experienced and heavy mobile phone users. I have had a mobile for nearly 6 years now, and I have had 4 services, and 5 different phones. I love the Nokia 5100/6100 line of phones, and this battery fits those.This battery is amazing. It is way too light, and way too small (these are good things.) I really believe that this is more than enough power for the average mobile phone user who charges their phone every evening. And any user would be impressed with it's size and weight, it is a great unit. However, I must say - for me, it is not quite enough power. I should have known better as it is only 750 mAh, but I wanted something thinner. I use about 2500 minutes a month on my phone, so you get the idea about my ussage patterns. It does last all the way through MOST days for me, but those few days it doesn't that is a problem. If your use 1500-2000 minutes or less, this is probably the greatest batter you could ever own. My plan now is to get this companies 2100 mAh version of this battery for my everyday life and travelling (where I might not charge every night), and keep this amazing small one for my evenings, where less weight in the pocket is very handy. I do highly recomended this battery as it does everything it advertises, and more. Just be aware if you are an extremely heavy user.
Rating:
Summary: Everything most people could ever want.
Review: As a preface, I am a experienced and heavy mobile phone users. I have had a mobile for nearly 6 years now, and I have had 4 services, and 5 different phones. I love the Nokia 5100/6100 line of phones, and this battery fits those. This battery is amazing. It is way too light, and way too small (these are good things.) I really believe that this is more than enough power for the average mobile phone user who charges their phone every evening. And any user would be impressed with it's size and weight, it is a great unit. However, I must say - for me, it is not quite enough power. I should have known better as it is only 750 mAh, but I wanted something thinner. I use about 2500 minutes a month on my phone, so you get the idea about my ussage patterns. It does last all the way through MOST days for me, but those few days it doesn't that is a problem. If your use 1500-2000 minutes or less, this is probably the greatest batter you could ever own. My plan now is to get this companies 2100 mAh version of this battery for my everyday life and travelling (where I might not charge every night), and keep this amazing small one for my evenings, where less weight in the pocket is very handy. I do highly recomended this battery as it does everything it advertises, and more. Just be aware if you are an extremely heavy user.
Rating: 
Summary: Not for the Nokia 5165
Review: Despite the site note that this is compatible, the battery has a convex surface that faces the flat phone back. This does not fit the 5165 model. I guess I need to try someplace else for a battery which is slimmer than the standard unit.
Rating:
Summary: Not for the Nokia 5165
Review: Despite the site note that this is compatible, the battery has a convex surface that faces the flat phone back. This does not fit the 5165 model. I guess I need to try someplace else for a battery which is slimmer than the standard unit.
Rating: 
Summary: This battery rocks
Review: Excellent battery. I've had this for a few weeks now and I get really great standby and talk time. It's amazing how long it lasts. I've had other more expensive batteries that didn't last as long. This is a bargin. I'm getting one for my wife.
Rating:
Summary: Terrific Battery!
Review: Finally, a thin and light battery that lasts. It turned my Nokia into a comfortable, light weight phone. I was about to change my phone until I found this battery.
Rating:
Summary: This is the best battery since the invention of cell phones
Review: Had mine for about a month now. I think its well worth the price because I dont ever get shut down any more for lack of juice. I've been waiting a long time for this new technology and its everything the web sites said it would be.One nice thing about this battery is that there are no "memory" issues when recharging.
Rating:
Summary: Ultralife Lithium Polymer Cellphone Battery
Review: I have owned this battery for about 6 weeks. It is a super battery that offers the consumer new cutting edge technology. The battery is super light, very, very thin and gives the Nokia cell phone a completly different look and feel. This is probably the safest cell phone battery ever developed. It is also environmentaly friendly. The battery has very long talk and standby performance. Women will especially like this battery because it is extremely light, and easy to carry in their purse. I highly recommend the purchase of this battery.
Rating:
Summary: Affordable Phone Makeover!
Review: I just got this new battery, and it REALLY IS like getting a new phone! This battery is about ONE-THIRD the weight and thickness of the standard battery, and has ALMOST the SAME talk-time. Before buying a new phone, check it out. I think you'll like it!
Rating:
Summary: This battery doesn't last!
Review: I've owned this battery for just over a year and it no longer holds a charge. I'm lucky if I get a day of normal talk time out of it. I'm very dissatisfied with this product.
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