Battery: Difference between revisions
| Line 9: | Line 9: | ||
= Parasitic Draw Testing = | = Parasitic Draw Testing = | ||
1. Close trunk lock latch to fool car into thinking that trunk is closed. | 1. Close trunk lock latch to fool the car into thinking that trunk is closed. | ||
[[File:W220_trunk_latch_closed.jpg|300px]] | [[File:W220_trunk_latch_closed.jpg|300px]] | ||
Revision as of 22:18, 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 the 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.