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The Uniden BT-905
is a cordless telephone battery used in hundreds of different Uniden, Panasonic, AT&T, V-Tech, Motorola and Toshiba cordless telephones - to name just a few!
In the following discussion, you will find detailed information on the Uniden BT-905 battery pack. We hope this information will give you the knowledge you need to make a more informed buying decision when replacing the BT-905 battery pack for your telephone.
What are the specifications of the Uniden BT-905 battery Pack?
Most BT905 batteries
are rated at 3.6 volts and either 600 or 700 mAh (Mili-Amp Hours). Sometimes you will see higher or lower mAh ratings. The mAh number is the measurement of the "capacity" of your BT-905 battery pack. The
higher the Mili-Amp Hour rating, the longer your run time. For example, an 800 mAh cordless phone battery will give you twice as much talk time when compared to a 400 mAh (half of 800) battery pack.
You can replace your BT-905 Battery pack with either a Nickel Cadmium (NiCd) battery pack or one made from Nickel Metal Hydride (NiMH) chemistry. Both chemistries are absolutely compatible with the built in charger for your cordless telephone. So the choice is yours...
About half of the replacement BT-905 batteries on the market are made with NiCd (Nickel Cadmium) chemistry. NiCd batteries are considered the "older" type of battery. NiCd batteries often develop what has become known as "memory effect".
Memory effect sometimes occurs in NiCd batteries when you don't discharge the battery completely before putting it back on the phone to re-charge. Memory effect leads to poor battery performance meaning less talk time and shorter battery life.
The good news is that NiMH batteries are immune to "memory effect". You can simply put the phone back on the charger anytime to top of the charge without damaging your battery. Because of this fact, we recommend upgrading your NiCd battery to a NiMH battery pack.
In addition to being memory free, NiMH batteries have as much as double the run time because of a higher mAh (capacity) rating. Most NiMh versions of the BT-905 battery are rated at 1300 mAh. The NiMH battery is a great way to extend the life of your cordless phone.
What is the normal useful life of a Uniden BT-905 Battery Pack?
Most consumers get between 3 to 5 years of service from their Sony BT-905 phone battery
before needing a replacement. This lifespan depends, of course, on individual patterns of usage.
But I thought all Uniden BT-905 batteries were rechargeable. So why do they wear out?
True, the Uniden BT-905 battery is a rechargeable battery pack. Unfortunately, we still have not invented "the perfect battery" and since there is no such thing
as a perpetual motion machine, the Uniden BT-905 will unfortunately eventually need to be replaced. Every time you charge and discharge the Uniden BT-905 battery, a
chemical reaction occurs inside the battery cells to store or release the electricity you rely upon to power your cordless telephone. Part of that chemical reaction uses up a tiny portion of the NiMh chemistry in
your Uniden BT-905 battery pack. Eventually those chemicals are depleted and once that happens, your battery goes "dead".
My Uniden BT-905 battery has a black wrapper. I see different colored telephone battery packs available. What is the deal? Is that ok?
Yes, that is ok. Several different companies manufacture and market their own version of the Uniden BT-905 battery design to consumers. Many times these companies
use different colored plastic shrink wrap as part of their marketing and "branding" efforts. We have seen blue, red, green, white, tan and yellow to name
a few! Rest assured, the color of your Uniden BT-905 plastic battery wrapping is cosmetic only and not important. What is very important is that the form factor (size), polarity
(orientation of the red & black wires to the connector) and the voltage (3.6 Volts) of
your BT905 - all must be exactly the same.
How do I make certain I'm getting a quality replacement BT-905 battery pack?
That is a good question. It is difficult to sort out the variety of offerings out there on the internet. You can find websites
selling replacement Uniden BT-905 batteries at prices from $8.95 to $19.99 for what
looks like "the same" (at least in the pictures) Uniden BT-905 battery. Our 10 years of experience in the battery business had taught us that you usually do "get what you pay for". So you need to use some common sense. In this particular
example, there is definitely something wrong with the two price extremes. Certainly $19.99 is way too much to pay for a Uniden BT-905 battery pack. Somebody is just trying to make a lot of
money! And in most cases, $8.95 is just too good to be true. We get concerned about the quality of the materials (battery cells), safety features, and quality control process to insure
the correct precision fit and finish of the BT-905 battery. At some of these low prices, one begins to wonder whether or not you are actually getting a brand new BT-905 battery or not? Unfortunately there are probably some "refurbished" or damaged goods out
there on the market. In addition many of these low teaser rates do not include shipping or handling charges. Oftentimes that "$8.95" replacement Uniden BT-905 cordless phone battery
ends up being $17.99 or much more once the hidden shipping and handling charges are added at the end of your checkout procedure. So make sure you are looking at the final total price of these "great deals".
What should I look for when buying a replacement Uniden BT-905 battery?
If you are interested in buying a quality replacement for your Uniden BT-905 battery, go with a proven company that offers at least a 30 day
money back guarantee, a one year no hassle warranty, gives you a toll free customer support telephone number, and clearly identifies
the total cost of the purchase including any shipping or handling charges upfront.
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