ninjette.org - View Single Post - Bike just out of storage, battery seems fine but no electrical at all

DannoXYZ · September 28th, 2019, 05:17 PM

Yes, tenders keeping battery fully-charged at "float maintenance" 13.6-13.8v full-time is way, way too much for long-term storage. That's stage-7 on sophisticated chargers such as Ctek 8-step charger (provided by BMW & Porsche as OEM charger).

After battery has reached stage-7 Full-Charge Float-Maintenance, it's allowed to relax at stage-8 Long-Term Storage. This turns OFF charger and lets battery drain to 95% (weeks). At which time, it's pulsed-charged back up to only 99% and charger turns off again to let battery self-discharge back to 95%. This allows battery to last years under Long-Term Storage and not get fried by 100% Float-Maintenance mode like tenders do.

September 28th, 2019, 05:17 PM	#8
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Yes, tenders keeping battery fully-charged at "float maintenance" 13.6-13.8v full-time is way, way too much for long-term storage. That's stage-7 on sophisticated chargers such as Ctek 8-step charger (provided by BMW & Porsche as OEM charger). After battery has reached stage-7 Full-Charge Float-Maintenance, it's allowed to relax at stage-8 Long-Term Storage. This turns OFF charger and lets battery drain to 95% (weeks). At which time, it's pulsed-charged back up to only 99% and charger turns off again to let battery self-discharge back to 95%. This allows battery to last years under Long-Term Storage and not get fried by 100% Float-Maintenance mode like tenders do.