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Kenwood KNB-78L Replacement Battery 2-Pack for TK-2173 TK-3148 Radios
Kenwood KNB-78L Replacement Battery 2-Pack for TK-2173 TK-3148 Radios
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Double Your Power, Eliminate Downtime for Your Kenwood Radios
When reliable communication is mission-critical, you simply can't afford a dead radio. This 2-Pack of OEM KNB-78L replacement batteries provides extended talk time and rugged durability for your Kenwood two-way radios. Designed specifically for demanding environments, these high-capacity lithium-ion battery packs ensure your team stays connected from the first shift to the last, without the "memory effect" of older battery technologies.
Key Features:
-
2-Pack Value: Always have a hot-swappable backup ready. Keep one battery in your radio while the second charges on the dock for true 24/7 operability.
-
Genuine OEM Reliability: Original equipment manufacturing ensures perfect fitment, stable voltage, and safe charging compatibility with your Kenwood docks.
-
High-Capacity Li-ion: Built with premium lithium-ion cells that offer an excellent power-to-weight ratio, extending your talk time without adding heavy bulk to your belt clip.
-
Built for the Elements: Features a rugged polycarbonate casing designed to withstand the drops, shocks, and vibrations of daily industrial use.
Technical Specifications:
| Feature | Specification |
| Battery Model | KNB-78L |
| Package Quantity | 2 Batteries |
| Battery Chemistry | Li-ion (Lithium-ion) |
| Voltage | 7.4V |
| Condition | Brand New, OEM |
| Rechargeable | Yes (No memory effect) |
Fully Compatible Kenwood Radios:
-
TK Series: TK-2173, TK-2360, TK-3140, TK-3148, TK-3170
-
(Also fits compatible NX and other TK series radios that utilize the KNB-55L/57L/78L battery footprint. Please verify your radio model before purchase.)
Double Your Power, Eliminate Downtime for Your Kenwood Radios
When reliable communication is mission-critical, you simply can't afford a dead radio. This 2-Pack of OEM KNB-78L replacement batteries provides extended talk time and rugged durability for your Kenwood two-way radios. Designed specifically for demanding environments, these high-capacity lithium-ion battery packs ensure your team stays connected from the first shift to the last, without the "memory effect" of older battery technologies.
Key Features:
-
2-Pack Value: Always have a hot-swappable backup ready. Keep one battery in your radio while the second charges on the dock for true 24/7 operability.
-
Genuine OEM Reliability: Original equipment manufacturing ensures perfect fitment, stable voltage, and safe charging compatibility with your Kenwood docks.
-
High-Capacity Li-ion: Built with premium lithium-ion cells that offer an excellent power-to-weight ratio, extending your talk time without adding heavy bulk to your belt clip.
-
Built for the Elements: Features a rugged polycarbonate casing designed to withstand the drops, shocks, and vibrations of daily industrial use.
Technical Specifications:
| Feature | Specification |
| Battery Model | KNB-78L |
| Package Quantity | 2 Batteries |
| Battery Chemistry | Li-ion (Lithium-ion) |
| Voltage | 7.4V |
| Condition | Brand New, OEM |
| Rechargeable | Yes (No memory effect) |
Fully Compatible Kenwood Radios:
-
TK Series: TK-2173, TK-2360, TK-3140, TK-3148, TK-3170
-
(Also fits compatible NX and other TK series radios that utilize the KNB-55L/57L/78L battery footprint. Please verify your radio model before purchase.)
| Battery Capacity | 2000mAh/14.8Wh |
| Voltage | 7.4V |
| Model No | KNB-57LI |
| Warranty | 12 Months |
🔋 Lithium-Ion Battery Conditioning
For optimal electrochemical performance, new lithium-ion batteries should undergo 2–3 complete charge and discharge cycles before reaching full capacity.
This stabilization phase allows the internal cell chemistry to achieve balanced ion distribution, ensuring maximum runtime, stable voltage output, and extended cycle life.
After this initial conditioning period, no further full discharge cycles are required.
🛡 Premium Warranty Protection
- 12-Month Limited Manufacturer Warranty
- Up to 30-Day Return Guarantee (Policy Based)
- Replacement for defective or misrepresented items
- Dedicated customer service response within 24 hours
🚚 Professional Shipping Standards
- Orders placed Monday–Friday are processed within 1–2 business days. Orders placed on weekends are processed the following Monday.
- Tracking information appears in your order within 1–2 business days after dispatch.
- Transit time varies by region and logistics carrier
- Please verify your shipping address before order confirmation
- Address changes are not possible once shipment is dispatched
📌 Product-Specific Notice
📩 Customer Care Commitment
We are committed to delivering professional-grade battery solutions and responsive after-sales service. If you experience any issues, please contact our support team before leaving feedback.
✓ Safety & Quality Assurance
- Built-in protection against overcharging, overheating, and short circuits.
- Shipped in compliance with IATA regulations for lithium batteries.
- Compatible with OEM chargers. No firmware modification required.
Questions about compatibility? Contact us with your device model number before ordering.
Cao Chuanping
Power Systems Consultant · 8+ years in replacement battery sourcing & evaluation · View profile →
All batteries sold on accessories-mall.com are replacement parts. accessories-mall.com doesn't affiliate with any of the original manufacturers. Any registered trademarks or model names listed above are identified as purposes of showing compatibility only.
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