---
product_id: 72372143
title: "KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L"
brand: "aimtobest"
price: "296 Lei"
currency: RON
in_stock: true
category: "Aimtobest"
url: https://www.desertcart.ro/products/72372143-knb-57l-2000mah-battery-compatible-for-tk-2140-tk-3140
store_origin: RO
region: Romania
---

# 7.4V stable voltage 2000mAh high capacity Advanced multi-protection KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L

**Brand:** aimtobest
**Price:** 296 Lei
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your professional edge with unstoppable energy!

## Quick Answers

- **What is this?** KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L by aimtobest
- **How much does it cost?** 296 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/72372143-knb-57l-2000mah-battery-compatible-for-tk-2140-tk-3140)

## Best For

- aimtobest enthusiasts

## Why This Product

- Trusted aimtobest brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable NiMH cells with ultrasonic sealing and dual PCM protection for safety and longevity.
- • **Plug & Play Confidence:** Factory-packed, 100% new replacement battery backed by responsive customer support.
- • **Power Through Your Day:** 2000mAh capacity ensures extended radio uptime without constant recharging.
- • **Seamless Compatibility:** Works flawlessly with a wide range of TK and NX series radios for ultimate convenience.
- • **Stay Safe, Stay Connected:** Comprehensive safeguards against overcharge, over-discharge, short circuits, and overheating.

## Overview

The Aimtobest KNB-57L is a 2000mAh, 7.4V NiMH rechargeable battery designed as a reliable replacement for multiple TK and NX series radios. Featuring advanced safety protections and durable construction, it guarantees long-lasting performance for both indoor and outdoor use, backed by a 1-year warranty and trusted customer support.

## Description

Buy Aimtobest KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Replacement Battery: This 2000mAh battery with 7.4V voltage is a perfect replacement for your original batteries. Compatible with KNB-24 KNB-24L KNB-35 KNB-35L KNB-55L KNB-57L Battery. Fit for KSC-25 charger.
- Compatibility: Compatible with TK-2140 TK-2148 TK-2160 TK-2168 TK-2170 TK-2173 TK-2360 TK-3140 TK-3148 TK-3160 TK-3168 TK-3170 TK-3173 TK-3360 NX-220 NX-320 radio. Factory packed and 100% new.
- Battery Protection: This battery provides comprehensive protection against overcharging, over-discharging, short-circuiting, and overheating.
- Safe & Durable Design: Made with high-quality materials, built with ultrasonic sealing technology, dual protection PCM. The compact design and high capacity ensure long-lasting performance.
- Reliable Customer Support: We are committed to your satisfaction and are here to assist with any questions or concerns. Please note that all products are replacement parts under our own brand “Aimtobest”, not OEM. Any reference to other brands or models is for illustrating compatibility only.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BT5DJN1 |
| Antenna Location | Outdoor & Indoor |
| Battery Capacity | 2000 Milliamp Hours |
| Battery Cell Composition | NiMH |
| Battery Cell Type | NiMH |
| Battery Weight | 108 Grams |
| Best Sellers Rank | #628 in Two-Way Radio Batteries |
| Brand | Aimtobest |
| Built-In Media | Battery Pack |
| Compatible Phone Models | For TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio |
| Customer Reviews | 4.2 out of 5 stars 97 Reviews |
| Item Dimensions | 3.94 x 2.2 x 0.71 inches |
| Manufacturer | Aimtobest |
| Model Name | KNB 57L |
| Model Number | 6543832328 |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Recommended Uses For Product | Outdoor & Indoor |
| Reusability | Rechargeable |
| UPC | 617695415141 |
| Unit Count | 1.0 Count |
| Voltage | 7.4 Volts |
| Warranty Description | 1 Year |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Brand:** Aimtobest
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 2000 Milliampere Hour (mAh)
- **Recommended Uses For Product:** Outdoor & Indoor

## Images

![KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L - Image 1](https://m.media-amazon.com/images/I/71+XUVWJ5IL.jpg)
![KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L - Image 2](https://m.media-amazon.com/images/I/717UAadovZL.jpg)
![KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L - Image 3](https://m.media-amazon.com/images/I/71e1rAC1uhL.jpg)
![KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L - Image 4](https://m.media-amazon.com/images/I/711V+Jw4p0L.jpg)
![KNB-57L 2000mAh Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L - Image 5](https://m.media-amazon.com/images/I/717tVlZHi6L.jpg)

## Questions & Answers

**Q: Does it come with warranty? These type of batteries do not last long "sometimes". The batteries also usually die out after the 90-day return policy.**
A: Dear friend, we have a one-year warranty period. If you are not satisfied with our product, please feel free to contact Amazon or us for replacement or return and refund. Thanks for your understanding.

**Q: What is the warranty for this battery?**
A: Dear friend, we have a one-year warranty period.

**Q: does it come with charger?**
A: This lising is for KNB-57L battery only, the charger not included and was sold separately

## Frequently Bought Together

- Aimtobest KNB-57L 2000mAh Li-ion Battery Compatible for TK-2140 TK-3140 TK-2170 TK-3170 TK-2160 TK-3160 TK-3360 NX-220 NX-320 Radio KNB-35L KNB-55L KNB-24L
- Aimtobest KSC-25 Charger Compatible for TK-2140 TK-3140 TK-2160 TK-3160 TK-2170 TK-3170 TK-2360 TK-3360 NX-220 NX-320 Radio KNB-57L KNB-55L KNB-35L KNB-56N KNB-26N Battery
- 2 Pack Kenwood KRA27 UHF Antenna for Kenwood TK372 TK3160 TK3170 TK3173 TK3180 TK3300 TK5310 Helical Antenna 400-470 MHz

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**Shop now:** [https://www.desertcart.ro/products/72372143-knb-57l-2000mah-battery-compatible-for-tk-2140-tk-3140](https://www.desertcart.ro/products/72372143-knb-57l-2000mah-battery-compatible-for-tk-2140-tk-3140)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-07-07*