oset 20.0 - Advanced Battery Charging and Care; Charging Time and Frequency; Charger and Battery Safety; Battery Balancing Importance

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IMPORTANT NOTES ABOUT CHARGING THE BATTERIES:
• It normally takes three to five hours to charge your batteries from a fully
discharged condition. Never overcharge. Remove from the charger after 5
hours maximum.
• Fully charge the batteries before using your OSET electric bike for the first time.
5 hours maximum.
• Fully charge the batteries for the first three charges after using your OSET bike.
• Always connect the charger to the bike before connecting the charger to the AC
power source.
• Always disconnect the AC power source from the wall socket before
disconnecting the charger from the bike.
• To avoid damage to the charger, never subject it to intense physical shock or
severe vibration.
• There is no ‘memory effect’ with AGM batteries, so the bike can go on the
charger even if the bike has only been used for a short ride.
WARNING!
Improper use of the battery charger can result in a fire with
property damage and physical injury or death.
CAUTION!
Do not block the fan vent on the charger while charging the
battery. This can cause the charger to overheat.
CAUTION!
The battery charger supplied with this battery is for INDOOR
use only.
CAUTION!
Avoid any contact with water or other fluids while charging the
battery. If the battery, charger or any connections become wet, immediately
unplug the charger and thoroughly dry all components prior to charging
the battery.
Additional Battery Care Guide:
Your OSET 20.0 features a 48v drive system. There are 4 x 12v batteries joined
together in series to make 48v. It is very important that the batteries are kept
‘balanced’. If one battery is driven to a lower voltage than the others, it can have
the knock on effect of it undercharging, while the other batteries in the system
overcharge to compensate. This will have performance repercussions, and will
affect the life of the batteries. The charger is treating the batteries as a single 48v
battery rather than individual batteries making up a pack.
OSET recommend using a ‘multimeter’ to monitor the health of the batteries. You
will be able to easily and instantly see the charge of each battery. If different
batteries show different readings then the ideal course of action would be to