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
Battery Cell Composition	NiMH
Battery Cell Type	NiMH
Battery Weight	20 g
Best Sellers Rank	#8 in Cordless Telephone Batteries
Brand	BAOBIAN
Compatible Phone Models	BT162342 BT262342 Battery, BT183342/BT283342 BT162342/BT262342 BT166342/BT266342, bt162342 bt262342
Customer Reviews	4.7 out of 5 stars 3,874 Reviews
External Testing Certification	Não Aplicável
Item Weight	40 g
Manufacturer	BAOBIAN
Model Name	BT162342 BT262342 Battery
Model Number	BB02162342
Number of Batteries	1 AAA batteries required.
Recommended Uses For Product	Cordless Phone Battery
Reusability	Rechargeable
UPC	661596544981
Unit Count	1 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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