Question 1

I need a battery for att b183342 that has 550 mah but can't find one. they only have 400 mah. can i use that or a 700 mah?

Accepted Answer

MAH (mill amp hours) is a measure of the strength of a battery in time, not the voltage or current it develops while working within its charge capabilities.
A 700 mah battery will put out its rated energy a little longer than a 600 mah or a 400 mah battery.  It will put out 700 milli-amps for one hour under a specific load for one hour, where a 400 milli-amp battery will put out 400 mill-amps under the same load for one hour until it starts loosing it charge below a set level.
You can use either a 400, 550, 600 or 700 mah battery.  The only difference is that the larger mah battery will last longer on a charge.  In a phone that sits in the cradle and is constantly charged, it should make little difference unless you have super extended conversations.

Question 2

Are these batteries appropriate for replacing at&t ?  3 piece cordless phone set el52315

Accepted Answer

We ordered these for AT&T phone set el52351 whick looks very similar to yours, and these batteries fit and work fine.  Too bad they only sell these in sets of 2 or 4!

Question 3

is this the right battery for V-Tech CS6729?

Accepted Answer

Most of the batteries that are shaped like these work in a wide variety of phones.  I have a V-Tech 6719 and it was good in there.

Problem is they are all made in China and I could not find one with a USA label.  Chinese batteries, in general, can be questionable.  If you get 2 years out of it, you are doing fine.

They are Nickel metal hydride batteries which is a step above Ni-Cads of days gone by.

Question 4

do i need to charge these first before using?

Accepted Answer

Yes if your battery discharges fast or is weak  Yes but make sure to give them a 8 hr charge before using them.will charge in the deck.

ASIN	B078W19ZKH
Antenna Location	Cordless Phone Battery
Battery Capacity	600 Milliampere Hour (mAh)
Battery Cell Type	NiMH
Battery Weight	20 Grams
Best Sellers Rank	#6 in Cordless Telephone Batteries
Brand	BAOBIAN
Compatible Phone Models	BT162342 BT262342 Battery, BT183342/BT283342 BT162342/BT262342 BT166342/BT266342, bt162342 bt262342
Customer Reviews	4.7 4.7 out of 5 stars (4,716)
External Testing Certification	Não Aplicável
Item Weight	40 Grams
Manufacturer	BAOBIAN
Model Name	BT162342 BT262342 Battery
Model Number	BB02162342
Number of Batteries	1 AAA batteries required.
Reusability	Rechargeable
UPC	661596544981
Unit Count	1.0 Count
Voltage	2.4 Volts

BT162342 BT262342 Battery Compatible with for BT183342 BT283342 BT166342 BT266342 VTech CS6114 CS6419 CS6719 at&T EL52300 CL80111 Cordless Phone (Pack of 2)

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