Changed battery not starting

[Doughydecker]

Car had an insufficient battery when I bought it and it was hard of starting , I changed battery and won’t start , not even off a jump start

[shogun]

Moved to E60 forum from 5 forums general

[Oleh007]

Have you registered the battery to your car? Well I guess the first step and it may sound dumb but did you check the correct numbers and that they match for the original battery for your car? After you double checked that, make sure the wires are nicely seated. If still not working you may need to register it, either by yourself or at a shop. This is an excerpt from Real OEM about the battery:

If the vehicle is equipped with an IBS
(Intelligent Battery Sensor), the
battery must be registered via the
diagnostic system (ISTA); this process
also registers the battery with the
vehicle's on-board electrical system.
----------------------------------------
Standard batteries can always be
replaced by AGM batteries with the same
specifications.
Following either type of replacement,
the vehicle registration process in
ISTA/P must be supplemented by a vehicle
coding procedure, which is carried out
as follows:
----------------------------------------
Read out battery size and registration
from onboard electrical system:
ISTA->Service functions->Body->Voltage
supply->Register_battery replacement->
Test plan

[pshovest]

Which car?
Lack of battery registration will not prevent any Bimmer from starting. Look elsewhere.