STK BP-511a BP-511 2 Pack Battery for Canon Rebel BP511a Charger DS6041 Eos 1d 10 d 30d d30 20d 40 50 50d Eos5d Eos20d Powershot g3 g5 g6 Pro 1 BG E2N Grip ZR600 BP511 Cannon Accessories CB 5L CG 580

Perfect replacement for my Canon D20. They fit perfectly and have more power than the originals. They charge up without a problem on my wall plug mounted Canon battery charger.

These batteries are awesome. SterlingTeK has a quality reputation for a reason. These last for twice as many shots than my original Canon batteries, with flash on and LCD at the highest setting. They are solid, sturdy and are of quality construction. The price is unbeatable and I would recommend them to my friends and family.The product is excellent, and the value is unbeatable. That being said, here is a small course on rechargeable batteries and how to get the most out of your batteries for all of your devices:----------The rest of this review is more of a guide to rechargeable batteries----------I recommend charging them fully as soon as you receive them (this is common for battery break-in procedure, as sometimes they discharge while on shelf and during shipping). Then after you've fully charged the battery, allow the battery to get to zero bars before charging the battery again, for proper battery conditioning / break in / calibration. HOWEVER, NEVER LET ANY BATTERY COMPLETELY DISCHARGE to the point of your device turning off! This is horrible for battery life. If you accidentally allow this to happen to any battery ALWAYS charge the battery IMMEDIATELY.This way you will extend the life of the battery. I have done many hours of research pouring through battery testing PDFs for all types and variations of batteries, for all kinds of devices. Yes, I know that many manufacturers claim that this is not necessary but I have found that ALL of MY batteries outlast those of my wifes and kids' devices where I had not had the chance to do this break-in for them.After this first battery calibration that I detailed above here is what I do, based on what I've found from extensive research:I always charge my batteries when they get low, but not dead. Between 10% and 20% remaining is the sweet spot, but 5% or 25% isn't going to make a whole lot of difference. Then, I charge the battery to about 80-90% percent, but not completely fully. Obviously not all chargers/devices show a percentage, so in those cases I just charge to 100% and take the battery off the charger as soon as I see that it is done. I NEVER charge batteries overnight or unattended. If you do, you will notice that you batteries will not last very long and will eventually not hold a charge much sooner than you would expect.With this method you will extend the life of your batteries of all kinds (obviously I'm only referring to all kinds of -rechargeables-). However it most be noted that once every six months, or 10 charge cycles, I repeat the original battery-break in that I detailed in the beginning. This re-calibrates the battery and in a way, REMINDS it of its limits. Again, I know a lot of manufacturers claim "our batteries do not have a memory". I disagree as my personal experience proves otherwise. Obviously, your mileage may vary.I can't stress enough, that completely discharging any type of rechargeable battery to the point of it being dead; will literally reduce the life of the battery drastically UNLESS it is immediately charged, no matter what brand or type, or style they are.One last thing:I only charge my batteries with the device off, as the heat from charging and using the device is extreme. (ever try to charge your cell phone and play a game on it at the same time? Big no-no).Further, Try to charge your batteries in a cool environment around 50 degrees fahrenheit OR put a small fan in front of them while charging. As most people know, HEAT destroys batteries, and charging them makes them heat up considerably.The less you allow your battery to reach temperatures that are too hot/exceedingly warm, the longer they will last.The same goes for allowing your battery to die.The less you allow your batteries to die completely to the point of your device turning off, the longer they will last.I hope this has helped, I spent quite a bit of time writing this... so if it has, please click the helpful button so it will be seen by more people.

This was a two-pack of batteries. Upon delivery one was fine but the other would not take a charge. I sent an email to SterlingTEK and let them know about the problem. Within an hour I received an email back saying they would refund or replace. I needed the batteries so I asked them just to replace. They said I did not need to even return the bad one. They sent a replacement set of batteries and even included the charger in the new pack. All done in just a few days. The new batteries are just fine and the charger is more compact than my old charger, so better for travel. Can't beat this kind of customer service.

Bought these to replace exhausted OEM batteries. The price of two of these batteries is well worth the low price over the OEM batteries if they are even available. They charged up easily and seem to hold charge for considerable time with moderate use and even through longer periods of storage. They also come with plastic covers to protect the terminals and covers saved from the OEM are perfect fit as well. The charge is just as good as the OEM.

Yes the batteries are made in China, maybe they are not OEM quality, and maybe they are. You get 2 batteries for half of one OEM battery. They work just fine no complaints. So you are one of those people who have to have the OEM, fine spend your $60. For the same amount of money you could buy 4 of these batteries.I agree you get what you pay for but "A fool and his Money are soon parted". I really don't care if people would rather have OEM equipment, It just leaves more for those of us who know a bargain when we see one. Do what makes you happy, I would rather save the money and still have enough to go out and have a nice steak dinner. I would buy these again and would recommend them to my friends and strangers .It's a battery, batteries for the most part are a primitive science, so why waste your money on a name brand just because you have to have OEM? The shipping was accurate, no hassles at all. Be smart save some money and give this item a shot.

Great replacement batteries for the Canon 40D.Fit perfectly both in the camera and the charger.The camera recognizes them perfectly and there are no issues.Besides being cheaper they also have a larger capacity then OEM.I had been using off brand batteries for years and it was time to replace them and upgrade.They both charge up and hold a charge well.I use them as a pair in a battery grip on the Canon 40D.The batteries and cover are an attractive dark black color.If you found anything helpful in this review, I would appreciate you taking the time to click so below! Thanks!