900Mah Lithium Battery For RAZER Mamba Gaming Wireless Mouse Part: FT703437PP, RZ03-00120100-0000 , Model : RC03-001201

After contemplating purchasing this 3.7 volt Lithium Battery as a spare for my Razor Naga Epic Gaming Mouse, I decided to take the plunge and risk the purchase. It only cost me 13 dollars and since I am an Amazon Prime Member, I received second day UPS shipping at no charge. That's a lot cheaper than if I would have bought the battery directly from Razor and paid their shipping charges amounting to a total cost (mouse and shipping) of around 33 dollars. Well, I ordered the battery on Amazon.com on Friday. I received it on Monday morning. Certainly, no complaints there. I installed the new battery in my mouse right away, and started using it immediately in wired mode so it could charge itself. It quickly charged to full power, less than an hour. I then switched to wireless mode where the battery performed just as well. I play MMO games which require high end graphics, and let me tell you this battery held it's own just as good if not better than the original 3.7 volt lithium battery that came with my Naga Epic Mouse. Why have two batteries? I like playing in wireless mode. So, when one battery charge drains out, I can just pop in the other (spare) fully charged battery and I'm good to go for many hours more. Again, this Lithium Battery sold by Power-O-Matic is a good alternative and works just as well as the original battery sold by Razor. I highly recommend it.

I don't think the battery lasts as long and it is a lower powered battery. But it is cheap and does what is says. I play a lot of games, sometimes for over 8 hours. Batter holds up pretty good. WAY cheaper then the one Razor sells, with their rip-off 20 buck shipping fee.

I had a Razer Mamba mouse for just shy of 3 years when I started having a problem; the darn thing wouldn't charge! Razer's customer support was absolutely amazing and sent me a brand spankin' new battery, completely free of charge, just days later which fixed the problem. However, I figured I was super lucky to get that kind of service and if this kind of thing were to happen again I'd be pretty screwed. So, I bought one of these third-party ones as a backup. I ended up swapping out and keeping the official one from Razer as a backup, and using this battery.It's been about a month now and I haven't had a single glitch, issue, or problem with the battery life. It performs exactly like it's Razer counterpart, and the price is right.Need a battery replacement? Go for this, but only after seeing if Razer can hook you up; I've always been a fan of their products, but they truly won me over when they shipped me a new battery for a 3 year old product entirely at cost.Razer can look forward to future business from this guy!

Both my OEM batteries swelled like crazy and had to be pried out.I tested this and it works, but it's a decent drop in capacity vs OEM.

Battery life is great, but I don't think it has a consistent power output. When using it my mouse cursor doesn't move smoothly and instead will stutter, jump around, and freeze a lot as though my mouse is randomly disconnecting/reconnecting super fast. I originally got this as an extra battery for my gaming mouse, but it makes any games requiring aim/precision and quick reflexes unplayable. For example, if you're playing a first-person game you'll be walking forward, look slightly to the left and then suddenly you're looking directly up in the air. Out of the box it worked great, but after the first charge this problem now persists. If I switch back to my original battery the problems instantly disappear.Don't buy this battery, it's a huge waste of a tenner.

Not much to say here.The mamba costs about $100, but batteries don't last forever.This will be the second time I replaced the battery over about a two+ year life span. I almost exclusively use it in wireless mode. It's connected to my desktop and sees a lot of use.The battery fits, and seems similar to the OEM for holding a charge.The price is fair, considering you can get it with prime for free shipping.There might be ones for cheaper on ebay, but I haven't tried any. No issues with this one to complain about or make me look elsewhere.If you have any questions, feel free to respond, but if you're just looking for a replacement battery then this is what you need.

I ended up buying a new Corsair, Razer is a meme

Pulled my Mamba out of electronic purgatory for a new computer build and found the battery cover was off and the battery was sitting funny in the mouse. Upon deeper inspection the battery was puffed up and had infact popped the cover off. No local stores carried the replacent and a specialized battery store said they could get one in a week at about 30 bucks. As a prime member I got this one in a couple of days much cheaper. Fits like a champ and an extra 100 milliamps to boot. Very happy with it as it lasts quite a while before needing charging.