Product Description


With future RV development in mind, WFCO has developed the WF-8500LiS Series, an advancement to the most forward thinking power center available today. The Lithium Switch allows customers the versatility to change charging modes between lead-acid and lithium batteries by simply hitting a switch. Easy to use, the WF-8500LiS Series provides a convenient, cheaper, long-term option that eliminates the hassle of swapping out a whole unit. Built on 40 years of power equipment experience, the WF-8500LiS Series combines exclusive zero clearance design with reduced dimensions to give manufacturers greater design flexibility.

Exclusive choice of four DC circuit connection modes – Quick Connect Terminals, Screw Terminals, Wire Pigtails, or WAGO Connectors – allows installers to select their preferred wiring connection for speed and ease of installation.

Every model is designed to comply with FCC Class B, which means that the converters do not cause interference with televisions, radios, or other signals. The 8540LiS model also brings you the convenience of built-in AC and DC distribution. 30 Amp main AC breaker and a total of up to nine AC branch circuits can be installed. Thirteen DC branch circuits, including three 30 Amp, have LED lights that illuminate to indicate open circuits.

Additional Information

Converter Type

Power Center

Input Voltage/Hz

105-130 VAC, 60 Hz

Output Power


Charging Modes

2-Stage Intelligent Charge, 3-stage Intelligent Charge (VRLA/AGM)

Intelligent Charging Stages

Absorption, Bulk, Storage (VRLA/AGM)

Battery Adaptability

AGM, Lead Acid, Lithium-Ion

Voltage Output

13.2 – 14.6 VDC, 13.6 – 14.6 VDC

Bulk Charge Voltage (4 Hrs.)

14.4 V

Absorption Charge Voltage


Float Mode (Trickle Charge Voltage)

13.2V DC (trickle charge voltage)

Cooling System

2 Speed Fan, Zero Clearance

Efficiency (full load)


Overload Protection

Auto recovery on normal load, Current limiting & shutdown

Short Circuit Protection

Auto recovery on normal load

Over Temperature Protection

Auto recovery on normal load

Reverse Polarity Protection

Fuse Protected, Replaceable by fuse of same rating

Protection Features

Over Temperature, Overload, Reverse Polarity (fuse), Short Circuit

AC Main Breaker

30 A

AC Circuits (twin breakers)

10 (Main and 9 Branch Circuits)

Built-in Strain Relief


DC Circuits (Quantity)

13 (3 30A Max and 10 20A Max)

Case Color


Case Material



FCC Class B compliant, UL


W 9.63″ x H 13″ x D 8.4″


5.93 lbs.

Warranty Period

Two Year Limited Product Warranty

DC Current

40A, 37A

Input Power


Input Current