Texas90
New Member
- Posts
- 13
- Location
- Norfolk, UK
Been having some problems with my 2004 TD5 Defender (never got it resolved from last year) - if it is left standing for more than 5 days the battery doesn't seem to have enough power to successfully crank the engine over and start up.
Took the following readings with a multimeter:
Reading at rest 12.37v
Reading when cranking 11.27v
Reading when running 14.45v
Standard draw at rest 198.2mA
Only fuse which creates a significant drop is #30 for instruments etc
Voltage when negative battery (still connected) to chassis earth 0.3mV
Resistance when negative battery (still connected) to chassis earth 2.4ohms
Disconnected and fully charged with mains charger
Reading as soon as charged 13.05v
After 12h -12.7v
After 24h - 12.65v
2 days - 12.59v
3 days - 12.55v
4 days - 12.52v
Any ideas? Not sure if there are other tests I need to do or is it just a new battery?
Took the following readings with a multimeter:
Reading at rest 12.37v
Reading when cranking 11.27v
Reading when running 14.45v
Standard draw at rest 198.2mA
Only fuse which creates a significant drop is #30 for instruments etc
Voltage when negative battery (still connected) to chassis earth 0.3mV
Resistance when negative battery (still connected) to chassis earth 2.4ohms
Disconnected and fully charged with mains charger
Reading as soon as charged 13.05v
After 12h -12.7v
After 24h - 12.65v
2 days - 12.59v
3 days - 12.55v
4 days - 12.52v
Any ideas? Not sure if there are other tests I need to do or is it just a new battery?
