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ENH-KNB21 Battery for Kenwood TK-260

enpower P/N:ENH-KNB21

oem battery:KNB-21N

Part Number:

Manufacturer (OEM):

oem model:

chemistry:Ni-MH

voltge:7.2V

capacity:1800mAh

Voltage/Capacity:

Demension (H*W*D)(cm):11.01*6.00*2.10

compatible radio:TK-3107 TK-278G TK-3107G TK-2107 TK-378G TK-388 TK-260 TK-261 TK-360 TK-270 TK-370 TK-278 TK-378 TK-2107G TK-238 TK-270G TK-272 TK-278 TK-338 TK-372 TK378G TK-2100 TK-2102 TK-3100 TK-3101 TK-3102

Description:

compatible models:

PRODUCT INFORMATION

ENH-KNB21 7.2V 1800mAh Ni-MH Two-way Radio Battery KNB-21N for TK-260 / TK-270 / TK-360 / TK-370 / TK-378 / TK-388 Series | Enpower

ENH-KNB21 7.2V 1800mAh Ni-MH Two-way Radio Battery for KENWOOD TK-260 / TK-270 / TK-360 / TK-370 / TK-378 / TK-388 Series Commercial Walkie Talkies

Enpower ENH-KNB21 high-performance nickel-metal hydride battery precisely engineered as a faithful OEM-spec replacement power pack for KENWOOD classic Land Mobile and FreeTalk commercial two-way radios. Fully compatible with OEM part number KNB-21N and supports an extensive range of 24 KENWOOD TK-2100, TK-2102, TK-2107, TK-2107G, TK-238, TK-260, TK-261, TK-270, TK-270G, TK-272, TK-278, TK-278G, TK-3100, TK-3101, TK-3102, TK-3107, TK-3107G, TK-338, TK-360, TK-370, TK-372, TK-378, TK-378G and TK-388 series professional walkie talkies used widely in hospitality, retail, construction, public events, light commercial and field service communication. Built around premium industrial-grade Ni-MH cells, delivering stable 7.2V nominal voltage and 1800mAh high capacity with cadmium-free environmental friendly chemistry, low memory effect and reliable wide-temperature performance. Short-circuit protected circuit design, high impact ABS/PC composite shell with ultrasonic welding sealing, golden plated brass contacts. The cost-effective OEM-spec upgrade choice for fleets and operators seeking genuine Enpower quality at a competitive price point. Manufactured in Guangdong China with 12-month full quality warranty.

Basic Product Information

Brand
Enpower
Model No.
ENH-KNB21
Applicable Equipment
Two-way Radio / Walkie Talkie
Matching OEM Models
KNB-21N
Battery Type
Ni-MH (Nickel-Metal Hydride)
Nominal Voltage
7.2V
Nominal Capacity
1800mAh
Overall Size (H*W*D)
11.01*6.00*2.10 cm
Weight
200g
Shell Material
High Impact ABS/PC
Contact Material
Golden Plated Brass
Sealing Method
Ultrasonic Welding
Cell Quality
High Quality Long Cycle Ni-MH 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 ENH-KNB21 replacement battery is fully compatible with the following 24 KENWOOD TK-260 / TK-270 / TK-360 / TK-370 / TK-378 / TK-388 series commercial two-way radio models:

TK-2100 TK-2102 TK-2107 TK-2107G TK-238 TK-260 TK-261 TK-270 TK-270G TK-272 TK-278 TK-278G TK-3100 TK-3101 TK-3102 TK-3107 TK-3107G TK-338 TK-360 TK-370 TK-372 TK-378 TK-378G TK-388

Product Description & Core Advantages

✅ Faithful OEM Replacement for KENWOOD TK-260 / TK-270 / TK-360 / TK-370 / TK-378 / TK-388 Series Radios
Direct replacement for KENWOOD OEM part KNB-21N, supporting 24 professional commercial handheld models across the TK-2100, TK-2102, TK-2107, TK-2107G, TK-238, TK-260, TK-261, TK-270, TK-270G, TK-272, TK-278, TK-278G, TK-3100, TK-3101, TK-3102, TK-3107, TK-3107G, TK-338, TK-360, TK-370, TK-372, TK-378, TK-378G and TK-388 series. Plug-and-play fit, identical housing dimensions, no modification required.

✅ 1800mAh Ni-MH Cell Pack — Cadmium-Free Environmental Friendly
Premium long-cycle Ni-MH cells deliver stable 7.2V output and 1800mAh reliable capacity — significantly higher runtime than the standard original Ni-CD pack, while keeping the same compact housing footprint. Cadmium-free chemistry makes this Ni-MH battery a fully RoHS-compliant, environmentally responsible upgrade choice for fleets and field operators. 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 commercial communication environment.

  • ⭐ OEM KNB-21N Replacement — Faithfully matches original dimensions (11.01*6.00*2.10cm), drop-in fit for all 24 TK-260/270/360/370/378/388 series radios without chassis modification
  • ⭐ 1800mAh Capacity — Balanced cost-vs-runtime upgrade over original Ni-CD, low self-discharge, supports full-shift operation on a single charge
  • ⭐ Cadmium-Free Environmental Friendly — Ni-MH chemistry is RoHS compliant and free from regulated heavy metals, suitable for indoor, hospitality and EU-market deployments
  • ⭐ Wide Temperature Tolerance — Ni-MH chemistry performs reliably across -20 degrees C to 60 degrees C working range, ideal for outdoor and industrial environments
  • ⭐ 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-MH cells is corrosive (alkaline KOH); avoid any contact with skin or eyes. In case of contact, flush immediately with plenty of clean water and seek medical advice.

  • ⚠ 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, direct sunlight or open flame for extended periods.

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

  • ⚠ This Ni-MH battery is cadmium-free but still contains regulated metals. 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 ENH-KNB21 fully compatible with OEM KNB-21N and KENWOOD TK-260 / TK-270 / TK-360 / TK-370 series radios?-
A: Yes. ENH-KNB21 is a faithful OEM replacement for KENWOOD KNB-21N, with identical 11.01*6.00*2.10cm housing dimensions, plug-and-play fit for all 24 KENWOOD TK-2100, TK-2102, TK-2107, TK-2107G, TK-238, TK-260, TK-261, TK-270, TK-270G, TK-272, TK-278, TK-278G, TK-3100, TK-3101, TK-3102, TK-3107, TK-3107G, TK-338, TK-360, TK-370, TK-372, TK-378, TK-378G and TK-388 series two-way radios. No modification required.
Q2: What are the main advantages of ENH-KNB21 Ni-MH compared to the original Ni-CD KNB-21N?+
A: The ENH-KNB21 Ni-MH pack provides three key upgrades over the standard original Ni-CD pack: (1) Higher capacity — 1800mAh vs typical 1500mAh original Ni-CD — longer talk time per charge. (2) Cadmium-free environmental friendly chemistry, fully RoHS compliant and safe for indoor and EU-market deployments. (3) Lower memory effect — the pack tolerates partial top-up charging much better, so you can grab a quick top-up between shifts without harming long-term capacity.
Q3: Can I use my old KENWOOD KSC-24 / KSC-30 Ni-CD charger or any aftermarket Li-ion charger on this Ni-MH battery?+
A: For Ni-MH charging, use a Ni-MH compatible charger with constant current and either negative delta-V cutoff or a timer cutoff (most modern KENWOOD KSC-series chargers with Ni-MH mode support this). KENWOOD KSC-24 and KSC-30 typically work for both Ni-CD and Ni-MH packs — verify your charger's compatibility label first. Do NOT use a Li-ion CC/CV charger on this Ni-MH battery — the voltage profiles and cutoff logic are different, and using the wrong charger can cause overcharge, overheating and reduced cycle life. When in doubt, contact us with your charger model number to confirm compatibility.
Q4: Will ENH-KNB21 fit radios from KNB-16, KNB-17A, KNB-22N, KNB-25A, KNB-26N, KNB-30 or KNB-45L families?+
A: ENH-KNB21 is designed ONLY for KENWOOD TK-2100, TK-2102, TK-2107, TK-2107G, TK-238, TK-260, TK-261, TK-270, TK-270G, TK-272, TK-278, TK-278G, TK-3100, TK-3101, TK-3102, TK-3107, TK-3107G, TK-338, TK-360, TK-370, TK-372, TK-378, TK-378G and TK-388 series commercial radios (replacement for OEM KNB-21N). These radios belong to KENWOOD's Land Mobile / FreeTalk commercial handheld family, which is a different size and contact layout from the classic TK-280/290/380/385/390/480/481 series (which use KNB-16/17A/22N packs), the later TK-2140/3140/2160/3160/2170/3170 series (which use KNB-25A/26N/57L packs) and the TK-2200/3200 entry-level series (which use KNB-30/45L packs). Each radio family has its own dedicated battery — housing dimensions, contact arrangement and locking mechanism are NOT interchangeable. Always check the model label on your radio or the OEM battery part number on your existing battery before ordering to ensure correct fit.
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 (1500mAh, 1800mAh, 2200mAh, 2500mAh) 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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