STK's Olympus BLS-1 Battery - 1800mAh for Olympus PS-BLS1, BLS-1 Batteries and Olympus PEN E-PL1, E-PM1, EP3, EPL3, Evolt E-420, E-620, E-450, E-400, E-410 Digital SLR Cameras.

I have always found that cameras using proprietary batteries, the battery life is gone long before the photo ops re over. With today's high capacity data storage chips, I always run out of juice long before the image chip is full. These replacement batteries for my Olympus Pen are a perfect replacement in terms of form, fit, and function, and they hold a charge for at least a couple of weeks sitting in my camera bag so I have yet to be left high and dry in terms of available battery power. Without doing a controlled study, I would say they perform with about the same reliability and charge life as the OEM battery. I'm a happy customer.

Works great in my olympus camers

I bought this battery as a spare for my Olympus PEN E-P3. At first I had a bit of trouble getting the original Olympus charger to charge it - it seemed there was some spiel there and I had to snap it in just so in order for it to begin charging. But once I got it right, it charged up fine. Operation is flawless and the battery lasts long. Great price and performance - what is not to like?

I last purchased a spare, in 2015 to the original with the camera which was dated 2009. They last and is still very serviceable after all these years. This new one powered my camera significantly more than the two older ones. I am really glad at the last minute buying this to go on an overseas trip. Came in handy. I doubt I will buy any more due to the obsolescence of old school cameras forced by advances in iPhone cameras and cheap cellular data access virtually everywhere now. But if you need a replacement battery, get this.

This battery is an extra battery for my camera, I have charged it and it works perfectly.

Have 2 of these batteries. They work great. I am not sure they are really 1800mAh because they do not seem to last as long as the battery that came with the camera. (subjective opinion, I do not have scientific means of testing). I purchased BLS-1 batteries from another vendor some time ago and they got very warm with continuous shooting and the battery expanded making it hard to remove from the camera. These batteries seem to be more stable and run a little cooler. Recommend if you meed spare BLS-1 batteries.

Update 4/2023, This is the 6th or 7th battery (for multiple cameras: Olympus & Nikons) that I have purchased from STK via Amazon. I just repurchase. Especially for the price I highly recommend. They perform just like the originals, although my original batteries have not needed replacing, they cost 4x more. I just purchased another battery to replace STKs that lasted 7+ years. The original I received was slightly swelled. It is hard to see, but it got stuck in my camera for a few days and then a challenge to get out. Side by side I clearly got a faulty battery but STK responded immediately when I realized a damaged battery cannot be mailed back. STK/Amazon replaced the battery within days. I am happy with the battery I received. I am still using the travel chargers. They are excellent & a great replacement for the bulky one's or wires that come with the cameras. Previous Review: Exactly what I needed for traveling, also bought the charger..cannot tell the difference from the originals. Highly recommend, will only buy STK's for all my equipment.

I bought this as a second battery for my camera. It is a luxury to have a backup battery that is ready to go at any time, and especially so at such a reasonable price. I now consider having two batteries a necessity while traveling - I never have to worry that my battery will die before the day of picture-taking is over. This battery works as well as the original one does and the reasonable price makes it a no-brainer purchase.