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Two rectangular lithium-ion battery packs with black plastic casings and gold contacts

BatteryJack inc.

BatteryJack inc. 2× KNB-33L 1800mAh 7.4V Li-Ion Battery for Kenwood TK-2180 TK-3180 TK-5210 TK-5310

SKU CH-9B8M-DDJFK

Twin 1800 mAh 7.4 V lithium-ion packs power Kenwood TK-2180, TK-3180, TK-5210 and TK-5310 radios with a six-side drop rating and an 18 month warranty

  • Two-pack keeps a spare ready for every shift
  • 1800 mAh capacity extends talk time between charges
  • 4 V lithium-ion chemistry matches original radio specs
  • Drop-tested six times from six feet on all sides
  • Eighteen-month manufacturer warranty covers each battery

Pair of 1800mAh 7.4V Li-Ion Packs

This twin-pack supplies two replacement batteries for Kenwood TK-2180, TK-3180, TK-5210 and TK-5310 series portable radios. Each cell delivers 1800mAh at 7.4V using lithium-ion chemistry. The units are built to meet or exceed the original equipment specifications for those models.

Drop-Tested Durability Limit

The manufacturer states each pack survives six drops onto all six faces from a height of six feet without breakage or loss of function. This defines the mechanical shock ceiling for field use; impacts beyond that height or onto harder surfaces are not covered by the claim.

Replaces OEM KNB-33L Cells

These packs directly substitute the Kenwood KNB-33L battery in every compatible radio variant listed. The upgrade is worthwhile when the original cells no longer hold a full shift charge or when a spare set is needed for continuous operation. Buyers who need higher capacity than 1800mAh or a different voltage platform cannot use this product.

How it compares

Measured against everything we stock in Walkie-Talkies & CB Radios, at today’s prices. Recalculated every night.

Price $39.99
Pricier than about 58% of the 1,062 comparable items (median $34.99).

Specifications

No published specifications for this item yet.

Questions about this item

Should I buy the 2-pack or a single KNB-33L battery?

The listing supplies two KNB-33L 1800mAh 7.4V packs, so you receive a spare for continuous operation while one charges.

What does the 1800mAh 7.4V rating deliver in my Kenwood radio?

The 1800mAh capacity at 7.4V powers compatible Kenwood TK-2180, TK-3180, TK-5210 and TK-5310 series portables through a typical shift before recharge.

Does the KNB-33L use the standard Kenwood battery interface?

Yes, the KNB-33L mates directly with the Kenwood sliding battery rail on TK-2180, TK-3180, TK-5210 and TK-5310 models.

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