PE1650 battery charging

David Hubbard dhubbard at
Tue Aug 5 09:36:01 CDT 2003

Thanks Jeremy.  I'm seeing this about once per month
on a 1650:

Aug  4 14:26:53 mail kernel: aacraid:Battery is Charging
Aug  4 15:40:57 mail kernel: aacraid:Battery charge is now OK

When that happens, the server is barely usable.  I
supposedly have a new battery coming today from
support but based on your email it sounds like it
will actually be much more than just the battery.
What is the normal charge cycle of the batter?  I'm
assuming once/month is not normal?


> -----Original Message-----
> From: Jeremy_Sheard at [mailto:Jeremy_Sheard at] 
> Sent: Tuesday, August 05, 2003 10:27 AM
> To: David Hubbard
> Cc: linux-poweredge at
> Subject: RE: PE1650 battery charging
> From: David Hubbard [mailto:dhubbard at]
> >If I called support, would I be able to get a
> >raid battery for a 1650 that doesn't require the
> >monthly degraded performance charging cycle?
> No. This raid controller on this server does not require 
> reconditioning.
> You cannot recondition ROMB (RAID On Mother Board) batteries 
> on the PE1650
> or PE2650.
> The PE1650 ROMB and PE2650 ROMB use Lithium Ion (Li-Ion) 
> batteries rather
> than Nickel-Metal Hydride (NiMH) used on past releases of 
> ROMB. The Li-Ion
> batteries do not require the reconditioning process and will 
> keep charged by
> the normal charging process. ROMB systems with Li-Ion 
> batteries will notify
> the user if the capacity is low. If the battery fails to return to a
> "Battery OK" state after a few hours it should be replaced. It is not
> unusual to see a battery low message generated, following a 
> reboot, when the
> system had been shut down for an extended period of time. 
> The batteries used on prior releases of ROMB were nickel-metal-hydride
> (NiMH) would require reconditioning due to it's 
> characteristics where the
> capacity deteriorates over time. The reconditioning process 
> would completely
> discharge the battery and determine the amount of charge the 
> battery was
> capable of holding. When complete, it would update the date 
> and time of the
> last reconditioning and notify the user every six months. 
> Systems and battery matrix:
> Systems     Battery Type    Reconditioning needed 
> PE1650      Lithium         No 
> PE2650      Lithium         No 
> PE2500      NiMHi           Yes 
> PE2550      NiMHi           Yes 
> PE4400      NiMHi           Yes 
> PE4600      NiMHi           Yes 
> PE2400      No battery      N/A 
> PE2450      Trickle charge (No Battery) N/A 
> >Or is there a firmware update that eliminates
> >this problem?  It kills our server once a month.
> >The server is about two years old in case that
> >matters, such as there being a new battery 
> >type released since then.
> No.  The Raid controller on the PE1650 is all one piece.  The 
> battery is
> attached to the Raid controller along with cache memory.  If 
> you would like
> to get all the components replaced (which includes the 
> battery), the part#
> you need is:  7F134 - PWA,CTL,PE1650,ROMB.
> On a side note, the part# for the Battery is P/N: 1K178 -
> BTRY,RSV,3.7V,SGL,LITH,ROMB.  However, it can not be shipped 
> seperatly.
> Regards,
> Jeremy Sheard
> DELL Server Support

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