Blue Smart IP65 Charger 12V 7A do not charge motorcycle battery if it connected to the vehicle chassis: Victron Connect app shows 0.0 A and after few hours of charging I can’t start bike engine. I can start engine by connecting the battery to an other bike battery when its engine started and generator works. And only 5 minutes is enough to charge the battery by the bike generator and restart the engine smoothly. So battery is ok. If I disconnect bike battery clamps or remove battery completely from the vehicle BSC starts to charge it with 0.1-0.3 A.
Very inconvenient! Is it possible to charge the battery without disconnecting it from the bike? May be need to update firmware?
Checked on 2 bikes: KTM 390 and 890 - do not charge on both until bike battery clamps disconnected. Both batteries are new, AGM, 9Ah. I have the latest firmware, application, etc.
I can charge car 70Ah AGM battery without any disconnections.
Charging electronics? Blue Smart IP65 Charger 12V 7A is new, just bought. No short - it shows it charges something, LED indications shows it switches from BULK to ABS, etc. But by fact battery is not charged, now even if I disconnect battery from the bike: can’t start engine after charging. Think problem could be in firmware, charging algorithm, wrong/low charging current for such battery or something like this.
I meant the carging electronics in the motorbike. Did you measure with an voltmeter directly on the battery poles what exactly happens during attempt to charge?
Just a few assumtions and thoughts: Battery is in motorbike and connected with batterypole clamps. You try to charge it with charger using crocodile clamps over the batterypole clamps. The charger tries to charge, if connection between batterypoles and the bike clamps are not good, the charge voltage will rise and might charge a capacitor in your bike charging electronics. With result, battery charger thinks ‘batt =full’.
Connection is fine and this happens on 2 bikes like I said. I would agree it could be some KTM bikes electronics specifics like You mentioned:
might charge a capacitor in your bike charging electronics. With result, battery charger thinks ‘batt =full’.
Because I had problems charging it with 3 different chargers recent time. Need more time playing with batterypole clamps off - how would it charge in this case.
What case, not clear? I think connection is good. Now brought the battery to warm house - it started to charge. Weird! It did not start to charge on motorcycle even with detached batterypole clamps.
haha, yess, that is weird.
In my previous message I meant to say “my suggestion -charging capactor, high voltage- could only be in effect if the connection would not be good”.
When the connection is good, you would not see that behaviour. In your case now.. I can’t say anything usefull I’m afraid
Not sure the problem is in BlueSmart: the battery could lost its capacity - not sure. However BlueSmart have to recover it but probably not in my case or it recovers only big automobile batteries. Good to get the answer from the support.
After all BlueSmart have charged the moto battery in a warm room! The engine started up with a half turn! However, it is much warmer today - +10C, previously was -4.
However a couple of questions still remains about charging the motorcycle:
why is it not charging with the terminals connected - is there a problem with the KTM electrics or the device firmware?
why is it not charging in a cold garage - the current is 0.0A, while the current and voltage should be higher in the cold conditions - a firmware problem?
May be only the latter problem exists. Does it makes sense to take more powerful device, for example, 12/15 for cold conditions to overcome battery resistance in the frost?
There are no such problems with the 70 Ah car battery charging - it charges in any case and conditions.
I meant the carging electronics in the motorbike. Did you measure with an voltmeter directly on the battery poles what exactly happens during attempt to charge?