Battery: Difference between revisions
(Created page with "= Battery Location = Battery is located in right side of trunk. = Battery Specification = AGM 100 Ah. = Parasitic Draw Testing = 1. Close trunk lock latch to fool car int...") |
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2. Lock the car. If you have keyless-go don't keep receiver close to the car otherwise car might not go to sleep. | 2. Lock the car. If you have keyless-go don't keep receiver close to the car otherwise car might not go to sleep. | ||
3. Using clamp meter clamp positive or negative lead of the battery. | 3. Using a clamp meter which can measure small current (CEM DT-337 is one of such meters) clamp the positive or negative lead of the battery. | ||
Right after closing the car, the car may consume 500mA. | Right after closing the car, the car may consume around 0.5A (500mA). | ||
After half | [[File:W220_battery_draw_test_CEM_DT-337.jpg|300px]] | ||
After half an hour, the car should consume ~50mA. The clamp meter is not very precise when measuring so small current, therefore, anything < 100mA is probably fine. | |||
[[File:W220_battery_draw_test_in_sleep_CEM_DT-337.jpg|300px]] | |||
== Common sources of parasitic drain == | |||
Common source for parasitic drain is navigation device which might not go to sleep if DVD has got stuck or the device have died. | |||
Revision as of 21:18, 17 January 2015
Battery Location
Battery is located in right side of trunk.
Battery Specification
AGM 100 Ah.
Parasitic Draw Testing
1. Close trunk lock latch to fool car into thinking that trunk is closed.
2. Lock the car. If you have keyless-go don't keep receiver close to the car otherwise car might not go to sleep.
3. Using a clamp meter which can measure small current (CEM DT-337 is one of such meters) clamp the positive or negative lead of the battery.
Right after closing the car, the car may consume around 0.5A (500mA).
After half an hour, the car should consume ~50mA. The clamp meter is not very precise when measuring so small current, therefore, anything < 100mA is probably fine.
Common sources of parasitic drain
Common source for parasitic drain is navigation device which might not go to sleep if DVD has got stuck or the device have died.