What does the manufacturer list separately?
Victron Energy's technical data has separate rows for nominal voltage, nominal capacity in Ah and nominal energy in Wh. It also states temperature and discharge-current conditions. The table supports preserving those different labels, not applying that battery family to an unrelated UPS.
Critical Power Drafting is independent and is not affiliated with Victron Energy. Use the selected critical power equipment and approved manufacturer submittal. This article does not select battery chemistry, configuration, protection or autonomy.
Which fields belong in the drawing transfer register?
Identify whether a value applies to a cell, module, string or complete bank before transcribing it. Keep the source quantity and boundary visible even when a template calls everything capacity.
| Field | Source detail | Keep separate from |
|---|---|---|
| Equipment | Model and configuration boundary | A cabinet count |
| Capacity | Ah and stated rating basis | Energy in Wh |
| Voltage | Applicable nominal value | Charge or cutoff setting |
| Energy | Wh or kWh and conditions | Unqualified runtime |
| Conditions | Temperature and discharge basis | An assumed universal rating |
| Reference | Approved submittal revision | Another product family |
What does nominal arithmetic show?
Illustrative example. A fictional schedule uses a nominal 24 V basis and 100 Ah capacity. Multiplying those nominal figures gives 2,400 Wh, or 2.4 kWh. Copying 100 into a Wh field would describe a different quantity, not a harmless abbreviation.
This nominal calculation is not usable AC energy or UPS runtime. It does not represent the changing discharge voltage, permissible discharge, actual load, conversion losses, temperature, aging or selected-system limits. Obtain the manufacturer's approved performance evidence for the required operating case instead of dividing this nominal result by the site load.
How should an inconsistent schedule be resolved?
Retain the original entry and flag which quantity label or configuration boundary is missing. Ask the responsible engineer to confirm the approved values and the performance document that supports the design. Reconcile the schedule and relevant drawing notes to that resolution.
A dimensionally correct entry is still not a battery design approval. Engineering sign-off is performed only by the registered engineer on the job.
Common questions
What else should the bid team know?
Can an Ah value be relabeled Wh?
No. Energy also needs its voltage basis and applicable conditions.
Does nominal Wh establish UPS runtime?
No. Obtain the selected system's approved performance evidence.
Does one cabinet establish the capacity boundary?
No. Confirm the actual module, string or bank configuration.