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-rw-r--r--docs/BATTERY-FAQ22
1 files changed, 20 insertions, 2 deletions
diff --git a/docs/BATTERY-FAQ b/docs/BATTERY-FAQ
index 201e30c660..35829a2dae 100644
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@@ -188,8 +188,26 @@ A12: In our testing we found the following results:
188 HD on, reading, backlight off ~ 600 mA 188 HD on, reading, backlight off ~ 600 mA
189 HD spin up before read max 800 mA 189 HD spin up before read max 800 mA
190 190
191 So leaving the unit on and paused consumes ~100mA, and thus much less 191 Using the power draw measurements shown above, lets look at the numbers:
192 than needing to reboot the unit. Your mileage may vary. 192 Power-down and restart vs. paused for 15 minutes.:
193
194 Pause for 15 minutes will draw: 94 mA / 60 minutes * 15 minutes =
195 23.5 mAh.
196
197 Power-down and restart will draw about (800mA / 3600 seconds * 3
198 seconds = 0.6666 mAh) + (600 mA / 3600 seconds * 6 seconds = 1.0 mAh) +
199 (230 mA / 3600 seconds * 8 seconds = 0.5111 mAh) = 2.18 mAh total used.
200
201 Thus, leaving it paused for 15 minutes draws more power (23.5 mAh) than
202 turning off and then on again (2.18 mAh).
203
204 So where is the break-even point?
205
206 Each second of pause will draw about 94 mAh / 3600 seconds = 26 ľAh.
207
208 2.18 mAh / 26 ľAh = 2180 ľAh / 26 ľAh = 83.5 seconds
209
210 Thus a shutdown and restart uses as much power as 83.5 seconds of pause.
193 211
194Q13: When I plug in the charger when the Recorder is turned off, it turns 212Q13: When I plug in the charger when the Recorder is turned off, it turns
195 itself on and starts charging in the Archos software? What's up? 213 itself on and starts charging in the Archos software? What's up?