You are correct. The all work perfectly... until they don't. Lithium
ions have a very nasty habit of catching fire from time to time.
Unfortunately, water does not extinguish the fire (but may help cool it
if you flood it well enough). Fire and even a possible explosion can
result if the battery is short circuited. Since this is well known a
properly built lithium-ion has a small computer chip inside to monitor
charge rate, temperature and discharge rate. Should something go awry
the smart little chip is supposed to disable the contacts to shut the
battery down. But those little chips are costly relative to the total
battery price. You can put a resistor in there at a fraction of the
price. Guess which manufacturers do that. Hint: You can't tell
without disassembling the battery. Your only protection is the brand
name of a well known manufacturer who cares for his reputation.
Proof of danger? See section III, page 2
<data.energizer.com/PDFs/lithiumion_psds.pdf>
Chuck Norcutt
On 11/14/2011 7:17 PM, OM4Ti wrote:
> We have many Oly E bodies, E300, E330, E520 and E5. There are at least a
> dozen aftermarket BLM1s around. I have one OEM and two aftermarket BLM5s and
> three assorted chargers for the E5. Never had any trouble with any
> manufacturer's battery.
>
> I just buy them off eBay
>
> -----Original Message-----
> From: Peter Klein [mailto:pklein@xxxxxxxxxxxxx]
> Sent: Monday, November 14, 2011 5:50 PM
> To: olympus@xxxxxxxxxxxxxxxxx
> Subject: [OM] Replacement battery for E-30
>
> I'll be needing to get a replacement battery for my E-30 (the BLM-01).
> Does anyone know of a reliable aftermarket battery? Or should I pay the
> freight for a genuine Olympus-branded battery?
>
> (I ask because some aftermarket batteries don't properly synch with the
> charging and battery life circuits, resulting in incorrect reporting of how
> much charge is actually left in the battery. This is a problem with Leica, I
> don't know if it is a problem with Olympus E-series).
>
> --Peter
>
> --
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