Comments on: Are there any Telephone Line Technicians out there? http://www.batterybackupguide.com/blog/are-there-any-telephone-line-technicians-out-there-2/ Thu, 17 May 2012 21:01:50 +0000 http://wordpress.org/?v=2.7 hourly 1 By: Bob B http://www.batterybackupguide.com/blog/are-there-any-telephone-line-technicians-out-there-2/comment-page-1/#comment-1583 Bob B Fri, 13 Mar 2009 00:35:03 +0000 http://www.batterybackupguide.com/blog/are-there-any-telephone-line-technicians-out-there-2/#comment-1583 (oh no, another Bob B!) The batteries that the telco uses are flooded 2V cells, in banks of 12 to create -48V. These cells are quite large, the ones we used were 12x4x22 inches each. (oh no, another Bob B!)

The batteries that the telco uses are flooded 2V cells, in banks of 12 to create -48V. These cells are quite large, the ones we used were 12×4x22 inches each.

]]> By: Bob B http://www.batterybackupguide.com/blog/are-there-any-telephone-line-technicians-out-there-2/comment-page-1/#comment-1582 Bob B Wed, 11 Mar 2009 12:04:13 +0000 http://www.batterybackupguide.com/blog/are-there-any-telephone-line-technicians-out-there-2/#comment-1582 As I recall, phone company batteries are *huge*. They aren't the small 12-volt batteries that you're thinking about - they're long-life, 48-volt, lead-acid batteries. As I recall, phone company batteries are *huge*. They aren’t the small 12-volt batteries that you’re thinking about - they’re long-life, 48-volt, lead-acid batteries.

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