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  • QuestionAre this and your CBC 909 Lithium Ion or NI-MH and what's the different pros and cons

    Asked by Butch.

    • Answer Hello! Thank you for your inquiry. Replacement battery model’s #CBC446 and CBC909 are both Nickel-Metal Hydride batteries; as most cordless phone batteries are. NiMH (nickel-metal hydride) has a higher density than alkaline, and this results in a longer life of use. Lithium-ion has an even higher density rate than a NiMH batteries. NiMH and Lithium-ion identifies the chemistry of a battery. Most laptop and cell phone batteries chemistry is Lithium-ion. If you have any further questions, please feel free to contact us. Thank you!

      Answered by Prof. Lenmar

  • QuestionHow do I install a new battery?I have a Uniden DCX640 cordless phone. It dies on me after about 90 minutes. Do I need a new battery for both phones, or should I buy a battery recharging unit?

    Asked by Ack Ack.

    • Answer Hello and thank you for your inquiry. 90 minutes is not a long talk time, so I would suggest that you may want to purchase a replacement battery for your cordless phone. Model #CBC446 is compatible with Uniden DCX640 series phones. This battery has a mAh of 850. The best way to compare a new battery is to compare it to your old battery by the mAh or Wh, which indicate how powerful the capacity of a battery is. Even though this doesn’t give you a run time at least you know if you are getting a battery that is comparable. If you have any further questions, please let us know!

      Answered by Prof. Lenmar