KNB-21N Replacement Radio Battery 7.5V 1800mAh NiMH

$43.95 Each

KNB-21N Replacement Radio Battery Specifications
Volts:	7.5 V
Capacity:	1800 mAh
Chemistry:	NiMH
Run-Time:	29 hours
Length:	4.34 in
Width:	2.38 in
Height:	0.81 in
Weight:	0.8 lbs

Replacement for the Kenwood KNB-21N radio battery designed to meet or exceed the original Kenwood KNB-21N radio battery in quality, durability, and performance.

Ships the same day (orders placed before 2pm MST)

Manufactured with high quality Panasonic battery cells.
Casing made with GE Polymer plastic for durability.
Built to perform under adverse conditions such as extreme heat, cold, shock, or motion.
Guaranteed to perform at 80% of original capacity for 12 months.
100% compatible to manufacturer specifications.

If you are looking for a radio battery or electronic accessory and can't find it, please feel free to contact us. We are always adding new products to our site, and we would love to help you find it. We always have people, not computers, that answer the phone.

Compatible Products

Kenwood TK2100
Kenwood TK2107
Kenwood TK260
Kenwood TK270
Kenwood TK272
Kenwood TK278
Kenwood TK3100

Kenwood TK3101
Kenwood TK3107
Kenwood TK360
Kenwood TK370
Kenwood TK372
Kenwood TK373
Kenwood TK260G

Kenwood TK272G
Kenwood TK3102
Kenwood TK360G
Kenwood TK370G
Kenwood TK372G

Compatible OEM Part Numbers

KNB-21N

Frequently Asked Questions

How long should I charge my two way radio battery?

As always, it depends on the type of battery. Nicad, NiMH and Li-Ion all have different charging methods. Generally though, it should only take two hours on a rapid charger and 4-6 hours on a standard charger. Some specialized chargers take longer, such as charger-conditioners.

What is the difference between regular batteries and intrinsically safe radio batteries?

Intrinsically safe batteries are batteries that are designed to work in dangerous environments where batteries could accidentally set off explosive gasses or combustible material. If you need to communicate around oil or propane refineries, textile factories, munitions, etc. then you must use intrinsically safe (or IS) batteries.

What do I do with my old batteries?

You can dispose of any batteries at any RBRC affiliated store. The RBRC (Rechargeable Battery Recycling Corporation) has members in every major city in the United States. There is no charge to drop your batteries off there. Home Depot and Radio Shack are two of its predominant members.

How can I use my UPS account number on your website?

Call us and we can put your UPS account number right in the order.

Where can I buy a KNB-21N Radio Battery?

Battery Universe carries batteries and accessories for most consumer electronics, including the KNB-21N Radio Battery. You can buy it right here on our website, or call us and we would be happy to take your order over the phone. Please visit us for all of your electronic needs.