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ENC-KNB25 Ni-CD Replacement Battery for TK-3140

enpower P/N:ENC-KNB25

oem battery:KNB-25A

Part Number:

Manufacturer (OEM):

oem model:

chemistry:Ni-CD

voltge:7.2V

capacity:1200mAh

Voltage/Capacity:

Demension (H*W*D)(cm):10.30*5.67*2.30

compatible radio:TK-3160 TK-3178 TK-2140 TK-3140 TK-2148 TK-3148 TK-2140E TK-2160E TK-2160M TK-2170E TK-2170E3 TK-2170M TK-2360E TK-2360MTK-3140E TK-3160M TK-3170E TK-3170E4 TK-3170E6 TK-3360E TK-3360M

Description:

compatible models:

PRODUCT INFORMATION

ENC-KNB25 7.2V 1200mAh Ni-CD Two-way Radio Replacement Battery KNB-25A for TK-2140 TK-3140 TK-2160 TK-3160 TK-2170 TK-3170 | Enpower

ENC-KNB25 7.2V 1200mAh Ni-CD Replacement Battery for Kenwood TK-2140 / TK-3140 / TK-2160 / TK-3160 / TK-2170 / TK-3170 Series Two-way Radios

Enpower ENC-KNB25 cost-effective nickel-cadmium battery specially engineered as a faithful OEM-spec replacement power supply for Kenwood handheld two-way radios. Fully compatible with OEM part number KNB-25A and an extensive range of professional TK-2140, TK-3140, TK-2160, TK-3160, TK-2170, TK-3170, TK-2360 and TK-3360 series walkie talkies. Built around premium industrial-grade Ni-CD cells with stable 7.2V nominal voltage and 1200mAh capacity, delivering reliable heavy-duty discharge and wide temperature tolerance for demanding field environments, with short-circuit protected circuit design, ABS/PC composite shell and ultrasonic welding sealing. The most budget-friendly choice for security, hospitality, logistics, construction, public safety and field service communication. Manufactured in Guangdong China with 12-month full quality warranty.

Basic Product Information

Brand
Enpower
Model No.
ENC-KNB25
Applicable Equipment
Two-way Radio / Walkie Talkie
Matching OEM Models
KNB-25A
Battery Type
Ni-CD (Nickel-Cadmium)
Nominal Voltage
7.2V
Nominal Capacity
1200mAh
Overall Size (H*W*D)
10.30*5.67*2.30cm
Weight
170g
Shell Material
High Impact ABS/PC
Contact Material
Golden Plated Brass
Sealing Method
Ultrasonic Welding
Cell Quality
High Quality Long Cycle Ni-CD Cells
Protective Function
Short-Circuit Protection
Application
Two-way Radio Communication
Quality Control
100% Aging Testing
Place of Origin
Guangdong, China
OEM / ODM
Available
Warranty Period
12 Months

Compatible Radio Models

The ENC-KNB25 replacement battery is fully compatible with the following Kenwood TK-2140 / TK-3140 / TK-2160 / TK-3160 / TK-2170 / TK-3170 series two-way radio models:

TK-2140 TK-2148 TK-2140E TK-2160E TK-2160M TK-2170E TK-2170E3 TK-2170M TK-2360E TK-2360M TK-3140 TK-3148 TK-3140E TK-3160 TK-3160M TK-3170E TK-3170E4 TK-3170E6 TK-3178 TK-3360E TK-3360M

Product Description & Core Advantages

✅ Faithful OEM Replacement for TK-2140 / TK-3140 / TK-2160 / TK-3160 Series Radios
Direct replacement for KENWOOD OEM part KNB-25A, supporting 21 radio models including TK-2140, TK-2148, TK-2140E, TK-2160E, TK-2160M, TK-2170E, TK-2170E3, TK-2170M, TK-2360E, TK-2360M, TK-3140, TK-3148, TK-3140E, TK-3160, TK-3160M, TK-3170E, TK-3170E4, TK-3170E6, TK-3178, TK-3360E and TK-3360M. Plug-and-play fit, no modification required.

✅ Cost-Effective Industrial-Grade Ni-CD Cell Pack
Premium long-cycle Ni-CD cells deliver stable 7.2V output and 1200mAh capacity with excellent heavy-duty discharge stability and wide temperature tolerance — a proven chemistry for budget fleets and harsh working environments. Short-circuit protected circuit design keeps the pack safe during daily field abuse.

✅ Robust ABS/PC Shell & Ultrasonic Welding Sealing
High impact ABS/PC composite housing with ultrasonic integrated welding sealing, golden plated brass low-resistance contacts — anti-drop, dustproof and moisture resistant, engineered for harsh outdoor communication environment.

  • ⭐ OEM KNB-25A Replacement — Faithfully matches original dimensions (10.30*5.67*2.30cm), drop-in fit for all TK-2140/3140/2160/3160/2170/3170 series radios without chassis modification
  • ⭐ 1200mAh Proven Capacity — Reliable heavy-duty discharge performance, holds voltage well under high current draw during long transmit cycles
  • ⭐ Wide Temperature Tolerance — Ni-CD chemistry performs reliably across -20 degrees C to 60 degrees C working range, ideal for outdoor and industrial environments where Li-ion struggles
  • ⭐ Budget-Friendly Maintenance — Lower acquisition cost and robust chemistry make it the economical choice for large radio fleets and rental operations
  • ⭐ Industrial Craftsmanship & Warranty — Manufactured under strict aging test procedure, OEM private label and bulk customization available, 12-month full quality warranty

Related Two-way Radio Batteries

Safety Cautions

  • ⚠ Do not disassemble, puncture or modify the battery housing — cell damage may cause electrolyte leakage or overheating. The electrolyte inside Ni-CD cells is corrosive; avoid any contact with skin or eyes.

  • ⚠ Keep battery terminals away from metal objects such as coins, keys and jewelry to prevent accidental short-circuit. Do not expose the battery to high temperature above 60 degrees C or direct sunlight for extended periods.

  • ⚠ Only charge with a Ni-CD compatible charger (constant current with negative delta-V cutoff). Do not use a Li-ion charger or a mismatched charger, and avoid leaving the battery on charge continuously for more than the recommended charging time.

  • ⚠ This battery contains cadmium, a regulated substance. Do not dispose of it with household waste. Return the spent battery to an authorized electronics or battery recycling collection point in compliance with local regulations.

Frequently Asked Questions

Q1: Is ENC-KNB25 fully compatible with OEM KNB-25A and Kenwood TK-2140 / TK-3140 series radios?-
A: Yes. ENC-KNB25 is a faithful OEM replacement for KENWOOD KNB-25A, with identical 10.30*5.67*2.30cm housing dimensions, plug-and-play fit for all TK-2140, TK-2148, TK-2140E, TK-2160E, TK-2160M, TK-2170E, TK-2170E3, TK-2170M, TK-2360E, TK-2360M, TK-3140, TK-3148, TK-3140E, TK-3160, TK-3160M, TK-3170E, TK-3170E4, TK-3170E6, TK-3178, TK-3360E and TK-3360M radios. No modification required.
Q2: What is the difference between this Ni-CD battery, the ENH-KNB26 Ni-MH and the ENL-KNB57 Li-ion for the same radios?+
A: All three batteries fit the same TK-2140/3140/2160/3160/2170/3170 series radios, but with different chemistry: ENC-KNB25 (this page) is a 7.2V 1200mAh Ni-CD pack — the most cost-effective option with excellent heavy-duty discharge stability and wide temperature tolerance, but it needs periodic full discharge to avoid memory effect. ENH-KNB26 is a 7.2V 2200mAh Ni-MH pack — roughly double the capacity, cadmium-free and environmental friendly. ENL-KNB57 is a 7.4V 2000mAh Li-ion pack — the lightest (120g) with no memory effect and the longest cycle life, but requires a Li-ion specific CC/CV charger. Choose Ni-CD for budget fleets and cold-weather sites, Ni-MH for high-capacity value, and Li-ion for lightweight long-cycle requirements.
Q3: How should I maintain this Ni-CD battery to avoid memory effect?+
A: Ni-CD cells can develop memory effect if repeatedly recharged from a partial discharge state. To maintain full capacity: perform a full discharge every 10-20 charge cycles before recharging, avoid frequent short partial charges, always use a Ni-CD compatible charger (constant current with negative delta-V cutoff), and store the battery at about 40% charge in a cool dry place if not used for a long period.
Q4: Will ENC-KNB25 fit radios from KNB-30, KNB-57 or KNB-26 families?+
A: ENC-KNB25 is designed ONLY for KENWOOD TK-2140/3140/2160/3160/2170/3170/2360/3360 series radios (replacement for OEM KNB-25A). The ENH-KNB26 Ni-MH and ENL-KNB57 Li-ion batteries fit the SAME radio family and are interchangeable in fit — you can upgrade your chemistry without changing radios. Please note: ENC-KNB30 (for TK-2200/3200) serves a different radio family with different housing dimensions and contact arrangements — it is NOT compatible with your TK-2140/3140 series radios. Always check the model label on your radio before ordering.
Q5: Do you support OEM custom labeling or bulk quantity orders?+
A: Yes, we accept OEM and ODM orders. Custom shell printing, private label, capacity variants and connector customization are all available for bulk quantity. Standard stock orders ship within 3-7 working days; OEM customized orders typically take 15-25 days lead time. Contact our sales team for exact quotation and MOQ.

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