Product Specifications for Replacement Kenwood TK2180 / KNB-33L Two-Way Radio Battery (7.4V, 1.9Ah, Li-Ion)
| BM Part #: | BP5633LI |
|---|---|
| Voltage: | 7.4 Volt |
| Capacity: | 1900 mAh |
| Energy Capacity: | 14.1 Wh |
| Type: | Li-Ion |
| Shipping Weight: | 1.00Lbs |
| Warranty: | 1-2 Year Factory Direct |
- High-Quality Japanese Cells: Built with premium Japanese lithium-ion cells for reliable, long-lasting performance you can count on shift after shift.
- Broad Compatibility: A direct drop-in replacement for the Kenwood KNB-33L — fits the NX210, NX210G, NX410, NX411, TK2180, TK3180, TK5210, TK5210G, TK5310, TK5310G, and TK5410.
- 7.4V / 1900mAh / 14.1Wh Capacity: Delivers strong, consistent power to keep your radio running through full workdays without reaching for a spare.
- Built-In Safety Protection: Onboard circuitry guards against short circuits, overcharging, over-discharging, and overheating — protecting both your battery and your radio.
- Wide Operating Temperature Range: Performs reliably from -4°F to +140°F, so it holds up whether you're working outdoors in the cold or in hot industrial environments.
- 12-Month Warranty: Backed by a full one-year warranty for worry-free ownership.
Product Description
Keep Your Kenwood Radio Powered All Day Long
When communication matters, the last thing you want is a dead battery. This 7.4V 1900mAh lithium-ion replacement battery is designed to keep your Kenwood two-way radio running reliably through long shifts, demanding environments, and everything in between. Whether you're on a job site, managing a facility, or coordinating a large event, this battery delivers the consistent power your team depends on.
A Genuine Drop-In Replacement for the Kenwood KNB-33L
This battery is a direct replacement for the OEM Kenwood KNB-33L — no adapters, no modifications, no guesswork. It snaps right into place on any compatible Kenwood radio and works with the same chargers you already own, including the Kenwood KSC-32 and a range of Endura multi-bay charging systems. Getting your team back up and running has never been easier.
Premium Japanese Cells for Lasting Performance
Not all replacement batteries are created equal. This one is built with high-quality Japanese lithium-ion cells, which are known for tight manufacturing tolerances and consistent output over hundreds of charge cycles. You get strong runtime from day one, and that performance holds up over time — rated for up to 500 full charge cycles before you start to see any meaningful drop in capacity.
Designed to Handle the Tough Stuff
This battery is built for real-world use. It operates through a discharge temperature range of -4°F to +140°F, so it can handle frigid winter mornings and hot summer job sites alike. The durable ABS housing is ultrasonically welded for a tight, secure seal, and pure nickel internal tabs are spot-welded for a solid electrical connection that holds up to regular use and the occasional bump.
Smart Protection Built Right In
The battery's onboard protection circuitry monitors for short circuits, overcharging, over-discharging, and overheating. That means it's not just protecting itself — it's protecting your radio too. You can charge it and use it with confidence, knowing that the battery is looking out for the health of your equipment.
Wide Radio Compatibility
This battery is compatible with the following Kenwood radio models: NX210, NX210G, NX410, NX411, TK2180, TK3180, TK5210, TK5210G, TK5310, TK5310G, and TK5410. If you're running a mixed fleet of these radios, stocking a single battery model simplifies your inventory and keeps everyone on the same page.
Frequently Asked Questions
What radios is this battery compatible with?
This battery fits the Kenwood NX210, NX210G, NX410, NX411, TK2180, TK3180, TK5210, TK5210G, TK5310, TK5310G, and TK5410. It is a direct replacement for the OEM Kenwood KNB-33L battery.
What chargers will work with this battery?
This battery is compatible with the Kenwood KSC-32 charger, as well as Endura models EC1-KW4A, EC1M-KW4A, EC2M-KW4A-D, EC6M-KW4A, EC12M-KW4A-D, EVC-KW4, and EVC-KW4-4. If you're already using one of these chargers with your Kenwood KNB-33L, it will work the same way with this replacement.
Is this an OEM Kenwood battery?
No, this is an aftermarket replacement battery, not an original Kenwood product. It is designed to meet or exceed OEM specifications and is a direct fit for all listed compatible radios.
How long will this battery last on a single charge?
Runtime depends on how heavily your radio is used — specifically the ratio of transmit, receive, and standby time. That said, the 1900mAh capacity at 7.4V (14.1Wh) is on par with the original Kenwood KNB-33L, so you can expect similar all-day performance under normal usage conditions.
How many times can I recharge this battery?
This battery is rated for up to 500 charge cycles. With regular daily use and proper charging habits, that translates to several years of reliable service before you'd typically notice a significant decrease in capacity.
What temperature range can this battery handle?
This battery can be discharged (used) in temperatures ranging from -4°F to +140°F. For charging, the recommended range is 32°F to +104°F. Avoid charging the battery in very cold or very hot conditions to maximize its lifespan.
Does this battery come with a warranty?
Yes, this battery includes a 12-month warranty from the date of purchase.
Cross Reference & Compatibility
- KNB-33L
- NX210
- NX210G
- NX410
- NX411
- NX5631-1
- TK2180
- TK3180
- TK5210
- TK5210G
- TK5310
- TK5310G
- TK5410
