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WFCO WF-9900 Series Power Converter

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Last updated: 20 September 2026

Other findings

Breaker rating
Replacement breakers not to exceed 50 A

When replacing any of the installed circuit breakers, the replacement should be of the same manufacturer, type designation, and equal or greater interrupting rating, not to exceed 50 A.

Source: forestriverinc.com/files/component-manuals/Electrical/WFCO - Power Converter Model WF-9900 Series Operator Manual.pdf

Bulk charge voltage
14.4 V in bulk, entered only from a discharged battery

If the output current reaches its maximum (normally caused by a discharged battery), this will cause the converter to go into Bulk Mode, which means the target output voltage will change to 14.4 VDC and a timer will start.

Source: forestriverinc.com/files/component-manuals/Electrical/WFCO - Power Converter Model WF-9900 Series Operator Manual.pdf

Charging stages
Three stages — Bulk, Absorption, Float

The 3-Stage “smart” charger continuously measures the battery voltage output and regulates the amount of charge using three modes of operation; Absorption, Bulk and Float modes.

Source: forestriverinc.com/files/component-manuals/Electrical/WFCO - Power Converter Model WF-9900 Series Operator Manual.pdf

Nominal output voltage
13.6 V nominal — the mode it holds in normal use

The converter normally provides a constant target output voltage of 13.6 VDC (nominal) to power all the branch circuits.

Source: forestriverinc.com/files/component-manuals/Electrical/WFCO - Power Converter Model WF-9900 Series Operator Manual.pdf

United States — CPSC

We did not match this product to any recall in the data we hold from CPSC, last checked September 20, 2026. Check CPSC’s own search: cpsc.gov/Recalls

United States — NHTSA & Coast Guard

We did not match this product to any recall in the data we hold from NHTSA or the US Coast Guard, which we hold records from but do not yet check on a schedule. Check NHTSA’s own search: nhtsa.gov/recalls

European Union

We did not match this product to any recall in the data we hold from the European Union, last checked September 20, 2026. Check the European Union’s own search: ec.europa.eu/safety-gate-alerts/screen/search

United Kingdom

We did not match this product to any recall in the data we hold from the United Kingdom, last checked September 20, 2026. Check the United Kingdom’s own search: gov.uk/product-safety-alerts-reports-recalls

Australia

We did not match this product to any recall in the data we hold from Australia, last checked September 14, 2026. Check Australia’s own search: productsafety.gov.au/recalls

Canada

We did not match this product to any recall in the data we hold from Canada, last checked September 20, 2026. Check Canada’s own search: recalls-rappels.canada.ca/en/search

France

We did not match this product to any recall in the data we hold from France, last checked September 20, 2026. Check France’s own search: rappel.conso.gouv.fr

None of these is a statement that the product is safe or unrecalled — only that our searches found nothing. Each regulator’s own search is linked above.

Compatible batteries

No sourced battery-compatibility evidence is on file for this charger yet.