Yes, finding them totally dead was very unexpected. I suspect that,
although now fully charged, they probably won't last long. I need to
find another 3rd party supplier.
Chuck Norcutt
On 5/4/2013 5:33 PM, Jim Nichols wrote:
> Hi Chuck,
>
> This post prompted me to check out a couple of non-OEM batteries I purchased
> some time ago for the E-1. Heeding your dire words of warning, I charged
> them, and checked that they would function, and then put them on top of my
> bookcase. I'm sure they have been there for more than a year. I just
> checked each of them in the E-1 and they appear fully charged and
> functional. Of course, they could ignite my house next time I charge them,
> but I feel they would be useful if an emergency battery need should arise.
>
> Jim Nichols
> Tullahoma, TN USA
> ----- Original Message -----
> From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
> To: "Olympus mail list" <olympus@xxxxxxxxxxxxxxxxx>
> Sent: Saturday, May 04, 2013 2:59 PM
> Subject: [OM] E-M5 battery cautions
>
>
>> Y'all may remember that I was concerned about battery life when I first
>> got my E-M5. As a result I bought not one but two spare non-OEM "EZO
>> Power" branded batteries from this Amazon seller
>> <http://www.amazon.com/EZOPower-Olympus-Full-Decoded-Rechargeable-E-M5/dp/B00A743A06/ref=sr_1_1?ie=UTF8&qid=1367694747&sr=8-1&keywords=olympus+EZO+battery>
>>
>> I purchased these (knowing they have 16% less capacity than the
>> original) since the cost was low and, unlike others available at the
>> time, they are "fully decoded" meaning the Olympus charger recognizes
>> and will charge them and the camera recognizes them and reports the
>> charge level.
>>
>> I had used all 3 batteries several times with no problems. Caution:
>> I'm drawing on faulty memory here... Sometime before we left Florida I
>> [think] I charged all 3 batteries and left the Oly in the camera. Based
>> on my shooting pattern I believe that was about March 5. Since then the
>> Oly battery has delivered approx. 250 shots shooting raw + medium size
>> JPEG.
>>
>> This morning I went out to take some photos of flowers and budding tree
>> blossoms when I got a message in the viewfinder "BATTERY EMPTY". After
>> a short chuckle over the wording of the message I went in to get one of
>> the EZO Power batteries. It turned out to be stone dead... no battery
>> empty message from that one. Then I tried the other. Same thing. I
>> measured the no load voltage which was 3.4 volts for each. Then I
>> measured the same with the Oly battery which, although "EMPTY" measured
>> 6.6 volts. What's worrying is that (I believe) that both batteries
>> fully discharged without having any usage... and it's not clear when
>> that happened. Shades of old NiMH technology.
>>
>> I have since charged all three batteries and was surprised to see the
>> EZOs only required 1-1/2 hours. The Oly required somewhere between 1-1/2
>> and 2-1/2 hours. I'm not sure since I was not around when the charging
>> ended. One of the EZOs is installed in the camera now. I will monitor
>> both from here on out to see how long they last both in and out of the
>> camera.
>>
>> If you read the EZO reviews on Amazon you will see that 4 out of 10
>> reviews are at 1, the lowest level... the batteries prove defective in
>> one way or another within 1-3 months. I will report back when I know
>> more about my own batteries (they do apparently take a charge) but it
>> doesn't look good at the moment. BlueMall (the seller) also only offers
>> a 30 day guarantee. Not good. All these negative reviews were not
>> there when I bought mine in early January.
>>
>> Chuck Norcutt
>> --
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>>
>>
>
>
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