CR17335SE-R Q6BAT 3V Lithium PLC Backup Battery for Q-Series Controllers

3V lithium PLC backup battery for compatible Q-Series CPU modules, motion controllers, industrial control systems, and machine-control applications requiring a CR17335SE-R / Q6BAT style memory backup battery. This battery helps preserve PLC memory, parameters, programs, clock data, and controller settings when the system is powered off or disconnected from main power.

What’s Included

• Included Item: 1x 3V lithium PLC backup battery with 2-pin connector

Technical Specifications

• Primary Part Number: CR17335SE-R
• Battery Type: PLC / industrial controller backup battery
• Battery Chemistry: Lithium manganese dioxide / Li-MnO₂
• Nominal Voltage: 3V
• Capacity: Approx. 2100mAh typical
• Cell Size / IEC Style: 2/3A
• Cell Dimensions: Approx. 17mm diameter x 33.5mm length
• Connector Type: 2-pin plug
• Lead Configuration: Red / black wire leads
• Lead Length: Approx. 150mm depending on supplied battery assembly
• Operating Temperature: Approx. -40°C to +85°C
• Shelf Life: Up to 10 years when stored properly
• Application Type: PLC memory backup, CNC control memory backup, motion controller backup, and industrial controller battery replacement

Connector Details

• Connector Style: 2-pin plug assembly
• Wire Leads: Red positive lead and black negative lead
• Battery Pack Style: Single 3V lithium cell with attached lead wires and plug
• Installation Type: Internal controller / PLC battery replacement
• Fit Requirement: Match the original battery part number, voltage, connector, polarity, wire length, and battery compartment clearance before ordering

Interchangeable / Replacement Part Numbers

CR17335, CR17335SE, CR17335SE-R, CR17335SE-R(3V), Q6BAT, Q6BAT-M, Q6BAT-3V

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your controller’s original battery part number, voltage, connector type, polarity, battery holder style, and memory-backup requirements. It’s essential to verify the original battery label and controller service documentation before installation.

✔ Q-Series PLC CPU Modules: Q00JCPU, Q00CPU, Q01CPU, Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU
✔ Universal Q-Series CPU Modules: Q00UJCPU, Q00UCPU, Q01UCPU, Q02UCPU, Q03UDCPU, Q03UDECPU, Q04UDHCPU, Q04UDEHCPU, Q06UDHCPU, Q06UDEHCPU, Q10UDHCPU, Q13UDHCPU, Q13UDEHCPU, Q20UDHCPU, Q26UDHCPU, Q26UDEHCPU, Q50UDEHCPU, Q100UDEHCPU
✔ Q-Series High Performance / Process CPU Applications: Q02PHCPU, Q06PHCPU, Q12PHCPU, Q25PHCPU and compatible process-control CPU configurations requiring the Q6BAT / CR17335SE-R style 3V battery
✔ Q-Series Redundant CPU Applications: Q12PRHCPU, Q25PRHCPU and matching redundant controller configurations using the Q6BAT battery family
✔ Q-Series Motion Controller Applications: Q172CPU, Q173CPU, Q172DCPU, Q173DCPU, Q172DSCPU, Q173DSCPU and compatible motion controller systems requiring the same 3V battery assembly
✔ QnA / QnAS / QnAC Controller Applications: Select QnA, QnAS, and QnAC controller configurations only when the original battery is marked Q6BAT, CR17335SE-R, or an exact matching 3V 2-pin battery assembly
✔ CNC / Machine-Control Applications: Select industrial CNC, machine tool, and controller battery applications originally equipped with a CR17335SE-R, Q6BAT, or matching 3V 2-pin lithium battery pack
✔ Industrial Controller Memory Backup Applications: Compatible PLC racks, motion modules, programmable controllers, and machine-control systems that specify the same 3V CR17335SE-R / Q6BAT battery style

☑️ Key Features

☑️ 3V lithium PLC / industrial controller backup battery
☑️ CR17335SE-R / Q6BAT style battery assembly
☑️ Approx. 2100mAh typical capacity
☑️ 2/3A lithium cell size with attached 2-pin connector
☑️ Helps preserve PLC memory, parameters, programs, and controller settings
☑️ Useful replacement for weak, expired, depleted, missing, or battery-alarm backup batteries
☑️ Pre-wired plug design for direct replacement when the connector and polarity match
☑️ Wide operating temperature range for industrial environments
☑️ Low self-discharge lithium chemistry for long shelf life when stored properly
☑️ Direct-fit replacement when the original battery part number, voltage, connector, and polarity match

⚙️ Fit Notes

• Match your original battery part number whenever possible
• Confirm your original battery is a 3V lithium backup battery
• Confirm the original battery is marked CR17335SE-R, Q6BAT, or a listed interchangeable part number
• Match the connector type, connector keying, polarity, lead length, and battery compartment fit before installation
• This is a non-rechargeable primary lithium battery and should not be recharged
• Do not use this battery in systems requiring a 6V backup battery pack or multi-cell assembly
• Do not use this battery to replace different connector styles unless polarity and fit are verified
• Backup the controller program, parameters, and machine data before battery replacement whenever possible
• Many PLC and CNC systems require battery replacement while the controller has power applied to prevent memory loss; follow the equipment service procedure exactly
• If the system already shows a battery alarm or has lost memory, parameter restoration or controller setup may be required after replacement