LiftMaster K94-36250, BATTERY WIRE HARNESS, 7AH
The LiftMaster K94-36250 is a 7Ah battery wire harness used in select LiftMaster residential and commercial DC gate operator battery backup systems. This harness is commonly associated with CSL24V and CSW24V style 24VDC slide and swing gate operators that use 7Ah sealed lead-acid batteries. It provides the proper battery interconnection and plug-in wiring path needed for charging and backup operation. This part is typically replaced when the original battery harness is corroded, cut, heat damaged, missing, or has loose terminals that cause low battery faults or unreliable operation after a power outage. Since LiftMaster gate operators may use different battery harnesses by model, enclosure and battery size, match the original part number and parts diagram before ordering.
In the field, parts like this are usually ordered after the original wiring, switch or alarm assembly has been exposed to moisture, battery acid, vibration, insects, heat, enclosure damage or previous troubleshooting work. A small harness or switch issue can create symptoms that look like a bad board, bad battery or failed accessory, so the original part number and model-specific parts breakdown are important.
This is a replacement service part for compatible LiftMaster operator systems. It should be installed in the same routing and connection points as the original component, with wiring protected from pinch points, moving arms, covers, batteries and sharp enclosure edges. If terminals are corroded or the control box has water intrusion, correct the source of the damage before installing the new part.
Compatible With
Common Compatible Models
Important Compatibility Notes
- Use with 7Ah battery configurations where the operator parts diagram calls for this harness.
- Do not substitute a 33Ah battery harness or a different LA/RSL/RSW harness without confirming battery size, connector style and polarity.
- Compatibility depends on the exact operator model, production generation, control box configuration and original parts diagram.
- Similar LiftMaster harnesses, reset switches and alarms may use different plugs, wire lengths, product ID labels or resistor values and may not be interchangeable.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | 7AH battery wire harness |
| Part Number | K94-36250 |
| Application | Battery backup harness for select LiftMaster 24V DC gate operators using 7Ah batteries |
| Compatible Operator Type | 24V DC slide and swing gate operators |
| Battery Type | 7Ah sealed lead-acid batteries where specified by the operator parts diagram |
| System Notes | Used in DC battery backup circuits; polarity and connector layout must match the original harness |
| Notes | Verify original part number, connector style and operator parts diagram before ordering |
Also Known As / Related Part Numbers
- K94-36250
- 94-36250
- K9436250
- battery wire harness 7AH
- 7AH battery harness
- LIF-K94-36250
Technician Note
Match this part against the original component before ordering. On DC gate systems, a weak battery, damaged battery terminal, bad connection, failed safety device or stored board fault can produce symptoms that look like a harness or reset switch issue. Inspect the complete circuit before replacing multiple parts.
Before Ordering
- Confirm the manufacturer part number printed on the original part or shown in the operator parts diagram.
- Verify the exact operator model and generation.
- Compare connector shape, wire count, harness length and mounting location.
- For battery harnesses, verify battery size, polarity and series/parallel connection layout.
- For reset switches, verify the product ID label or resistor version when applicable.
Professional Advisory
Disconnect power and batteries before servicing low-voltage gate operator wiring. Do not bypass alarms, reset circuits, monitored entrapment protection or safety devices. If the control box has burn marks, water damage, repeated blown fuses, unsafe wiring or unpredictable gate movement, have the system inspected by a qualified gate technician.
Product Questions & Answers
What does the LiftMaster K94-36250 harness do?
The K94-36250 harness connects the backup battery circuit to the gate operator using the connector style and battery layout specified for that model family.
Which operators is K94-36250 commonly associated with?
It is commonly associated with select CSL24V, CSL24VH, CSL24U, CSL24UL, CSW24V, CSW24VH applications, but final fitment should be verified by the operator parts diagram.
Can I use this harness with any 7Ah battery?
No. Battery size is only one part of fitment. The harness must also match the operator model, connector style, polarity and battery wiring layout.
What problems can a bad battery harness cause?
A damaged battery harness can cause low-battery warnings, failure to charge, unreliable backup operation, intermittent power loss or visible corrosion at the battery terminals.
Should power be disconnected before replacing the harness?
Yes. Battery and AC power should be disconnected before service, and electrical work should be handled by a qualified gate technician when wiring condition is uncertain.
