PE1650 battery charging Jeremy_Sheard at
Tue Aug 5 10:33:00 CDT 2003

From: David Hubbard [mailto:dhubbard at]

>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?

It's normal to see the above messages.  However, the server should not act
"barely usable".  Correct.  Once a month is not normal.  About every 6
months is the normal charge cycle for these batteries.

> -----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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