Question about the value of External Batteries

[Magnussen_apc]

This was originally posted on APC forums on 3/23/2012

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Hi,

I have a question about the value of the External Batteries. UPS is a SmartUPS RT 3000.
Within the system are 2 internal batteries.
I have NO external batteries connected.

In the Management under UPS/Configuration/General there is a field called External Batteries.
The value in the field is 1. I can't change this value to 0. If I do so and press Apply the
value is still 1.

I can change the value to 2. If I do so the remaining time of the UPS is increasing.

Whats behind this value and why can I not change it to 0?

Message was edited by: Magnussen

[BillP · Accepted solution]

This reply was originally posted by Stefan on APC forums on 4/3/2013

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I have a rack-mount Smart-UPS RT 8000 XL (SURT8000XLI) with AP9631 Network Management Card 2.

The base unit (3U) includes one battery pack (3U) and there are 3 more battery packs (SURT192XLBP) daisy-chained to it.

What's the correct value to set in the NMC configuration?

I have set it to 4 now and would like to confirm if this is correct.

Thanks

[BillP]

This reply was originally posted by Angela on APC forums on 4/4/2013

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Here are my notes - what I did way back when is checked the user's guides on all the models to check what the default user's guide value was for battery packs was and just jotted it down. hope this helps.

Since I am in NAM, i reference the demoestic XLT models here but same goes for XLI.

SURTA1500XL/SURTA2000XL:

Defines the number of connected battery packs for proper run time prediction.

1 = internal battery module,

2 = one SURTA48XLBP or SURTA48XLBPJ,

3 = two SURTA48XLBP or SURTA48XLBPJ,

etc.

SURTA3000XL:

Defines the number of connected battery packs for proper run time prediction.

1 = internal battery module,

2 = one SURT192XLBP or SURT192XLBPJ,

3 = two SURT192XLBP or SURT192XLBPJ, etc.

SURTD3000XLT and SURTD5000XLT:

Defines the number of connected battery packs for proper run time prediction.

1 = one SURT192XLBP or SURT192XLBPJ,

2 = two SURT192XLBP or SURT192XLBPJ, etc.

SURT3000XLT and SURT5000XLT (non Ds), SURT6000XLT, SURT8000XLT, SURT10000XLT:

Defines the number of connected battery packs for proper run time prediction.

1 = internal battery module,

2 = one SURT192XLBP or SURT192XLBPJ,

3 = two SURT192XLBP or SURT192XLBPJ, etc.

[BillP]

This reply was originally posted by Chris on APC forums on 3/26/2012

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With this type of unit, we consider the internal battery as 1 for that field. If you had one external it would be 2 and so on. Please let us know if you have further questions.

[Magnussen_apc]

This was originally posted on APC forums on 3/27/2012

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Thanks for your answer. That helps.

[BillP]

This reply was originally posted by Stefan on APC forums on 4/5/2013

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Great, thanks.