Differences

This shows you the differences between two versions of the page.

--- electrical:12v:deep_cycle_battery [2023/10/27 16:32]
frater_secessus [specs]
+++ electrical:12v:deep_cycle_battery [2024/04/15 05:00] (current)
frater_secessus [Chain Store Batteries]
@@ Line 22: / Line 22: @@
     * Lead is typically rated at the 1/20th the current as Ah (5A for a 100Ah battery) down to 50% DoD.
     * LiFePO4 is typically rated at the 1/5th the current as Ah (20A for a 100Ah battery) down to 80% DoD.
-    * both maximum and recommended charge/discharge currents are given [[electrical:12v:battery_capacity|in C]].
+    * both maximum and recommended charge/discharge currents are given [[electrical:12v:battery_capacity|in C]] or Amps.
@@ Line 280: / Line 280: @@
 Further reading:  [[https://marinehowto.com/what-is-a-deep-cycle-battery/|this page]] with further explanation and teardowns to show the difference between deep cycle and "deep cycle" batteries.
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+==== Telco backup batteries ====
+Telcos and other companies that need battery backup rotate their AGM batteries out regularly;  these find their way onto the used market on pallets for relatively low prices.
+These backup batteries are not meant to cycle, vandweller style.  They are designed to live on Float forever then suddently dump their power when grid power goes down.
+Can you make them work for you?  Maybe, but people who can squeeze some use out of them already know what they are doing.

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