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updated battery tester documentation
[physical.git]
/
power
/
battery tester
/
index.org
diff --git
a/power/battery tester/index.org
b/power/battery tester/index.org
index
21dd258
..
6e61e4f
100644
(file)
--- a/
power/battery tester/index.org
+++ b/
power/battery tester/index.org
@@
-39,15
+39,19
@@
at their terminals is good. But some old batteries will get
empty/discharged way too quickly under normal load. This device is
intended to discover old batteries with reduced capacity.
empty/discharged way too quickly under normal load. This device is
intended to discover old batteries with reduced capacity.
-Freshly charged batteries are tested under high load
by shorting
-battery + and - terminals using 5 ohm power resistor
+Freshly charged batteries are tested under high load
for short time by
+
shorting
battery + and - terminals using 5 ohm power resistor
(R1). Simultaneously battery voltage is being measured while under
load.
[[file:electrical%20schematic.png]]
I use vintage analog voltmeter. Instead of power resistor I use
(R1). Simultaneously battery voltage is being measured while under
load.
[[file:electrical%20schematic.png]]
I use vintage analog voltmeter. Instead of power resistor I use
-Nichrome resistance wire. It gets hot quickly!
+Nichrome resistance wire. Test/measurement button should not be
+pressed for long because power resistor gets hot quickly and battery
+is being quickly depleted during measurement.
+
+[[file:assembly.png]]
+ Body: [[file:body.png]]
+ Cover: [[file:cover.png]]
+ Body: [[file:body.png]]
+ Cover: [[file:cover.png]]
@@
-56,3
+60,6
@@
Nichrome resistance wire. It gets hot quickly!
+ [[file:bodyAndCover.FCStd][FreeCAD project]]
+ [[file:body.stl][body STL file]]
+ [[file:cover.stl][cover STL file]]
+ [[file:bodyAndCover.FCStd][FreeCAD project]]
+ [[file:body.stl][body STL file]]
+ [[file:cover.stl][cover STL file]]
+
++ PS: While this device is interesting to build, still you can just
+ use ordinary ammeter that can handle battery generated current.