The kaito ka-600l uses a 18650 battery. why does the listing show this to be compatible with the ka-600l?

I don't know about the listing comparison , but it is a 3AAA compact . My radio was an Eton Microlink FR160 . Looking at reviews from previous buyers , it IS necessary to change the polarity of the wiring . Simple to do . Mark connector , then depress pin tab thru side of plastic connector , and gently remove wire and pin from connector . When both are out , reverse position of wires , then gently slide pin into connector until pin tab locks into place .

Will this fit a c crane observer radio?

Spec on the battery: Type: Ni-MH Cell: 2/3 AA ( times 3) Voltage: 3.6 V Current rating: 800 mAh Battery Dimension: 1 3/4 in x 1 1/4 in x 9/16 in. Visual image of battery and specs are in the radio's user manual. Not sure about dimension.

will it work with microlink FR160

The battery fits and works on an Eton FR-300 radio. Not familiar with Eton FR-160.

What are the dimensions of the battery pack? Fit Grundig emergency radio?

Width 1.671, height 1.135, depth 0.568 inches. Height value omits the leads and connector. Battery pack marked Ni-MH 2/3AA600mAH 3.6V. Battery pack fit my Kaito KA500 emergency radio perfectly and the wiring was correct (ref. some other comments). Don't have a Grundig.

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Kastar BT500 Battery Pack Replacement for Kaito KA500 5-Way Weather Alert Radio, Kaito KA550 5-Way Powered AM/FM Shortwave NOAA Weather Emergency Radio, Kaito Voyager Pro KA600 Voyager Radios

Product ID: 264952337

Details

Battery capacity
800 Milliamp
Battery cell composition
NiMH
Brand
Kastar
Number of batteries
1 AA batteries
Recommended uses for product
Radio

⚡36V voltage for reliable performance

📻Compatible with multiple Kaito & Eton radios

🔋800mAh NiMH rechargeable power

¥5855

Duties & taxes included

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your peace of mind—never miss a critical alert!

LIGHTWEIGHT PORTABLE - At just 0.03 kg, this battery pack keeps your emergency radio ready without weighing you down.
SEAMLESS COMPATIBILITY - Designed specifically for Kaito KA500, KA550, KA600, and select Eton/Grundig models—no guesswork, just perfect fit.
RECHARGEABLE ECO FRIENDLY - NiMH technology means you can recharge and reuse, reducing waste and staying prepared sustainably.
POWER UP YOUR EMERGENCY GEAR - 800mAh NiMH battery ensures long-lasting, dependable energy when you need it most.
STAY CONNECTED WHEN IT COUNTS - Keep your 5-way weather alert radio powered through storms and outages—don’t be the one left in the dark.

The Kastar BT500 is a lightweight, rechargeable 800mAh NiMH battery pack delivering 36 volts of reliable power. Engineered for seamless compatibility with Kaito KA500, KA550, KA600, and select Eton/Grundig radios, it ensures your 5-way weather alert and emergency radios stay charged and ready. Perfect for professionals who demand dependable, eco-conscious emergency preparedness.

Specifications

ASIN	B07KZB5K5R
Antenna Location	Radio
Battery Capacity	800 Milliamp Hours
Battery Cell Type	NiMH
Best Sellers Rank	#187,213 in Electronics ( See Top 100 in Electronics ) #628 in Radio Communication Products
Brand	Kastar
Customer Reviews	4.5 4.5 out of 5 stars (580)
Item Weight	0.03 Kilograms
Manufacturer	Kastar
Model Number	MH-1B-KA600
Number of Batteries	1 AA batteries required. (included)
Reusability	Rechargeable
UPC	689211449237
Unit Count	1.0 Count
Voltage	36 Volts

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