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--- howto:electro:supercapacitor [2024/04/18 10:37] – harvie
+++ howto:electro:supercapacitor [2024/04/21 19:35] (aktuální) – [Greencap 16V 83F (6x 2.7V 500F)] harvie
@@ Řádek 3: / Řádek 3: @@
 ===== Greencap 16V 83F (6x 2.7V 500F) =====
-Each cap can handle 2.7V long term, 2.85V short term. Balancer start discharging overcharged caps through 1 ohm power resistor once they overshoot 2.8 - 2.85 V.
+Each cap can handle 2.7V long term, 2.85V short term. Balancer starts discharging overcharged caps through 1 ohm power resistor once they overshoot 2.8 - 2.85 V.
@@ Řádek 14: / Řádek 14: @@
   * UPS (replaced 12V 7Ah)
+    * There is some inefficiency in conversion from 12VDC to 220VAC
+    * UPS stops discharging at 10.2V (under load, which might translate to ~11V with no load)
     * 8W LED was running for over 5 minutes
     * 100W incadescent bulb was running for 30 seconds
-  * Piaggio scooter (replaced 12V 10Ah AGM)
+  * Piaggio scooter (replaced 12V 10Ah AGM, immobiliser has 3mA idle current)
     * Charges to 14.4V (in ~1 minute)
-    * After sitting for 9 hours voltage drops to 12.2V (cranks up)
+    * After sitting for
-    * After sitting for 15 hours voltage drops to 11.2V (cranks up)
+      * 9 hours voltage drops to 12.2V (cranks up)
-    * At 8V (cannot crank up)
+      * 15 hours voltage drops to 11.2V (cranks up)
+      * 22 hours voltage drops to 10V (cranks up)
+      * 34 hours voltage drops to 8.2V (cannot crank up)