M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
MSI-4300 Porta-Weigh Plus/5 Key
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User Guide
Page 7
The Battery Access Door and the Sealed Lead Acid Battery are potential falling
hazards. When opening the battery access door, be sure to hold the battery to
prevent it from falling.
The Sealed Lead Acid Battery contains lead and should be recycled when it has
reached the end of its life.
BATTERY LIFE
The MSI-4300 battery life depends on a number of factors: Brightness of the
liquid crystal display (LCD) and number of segments lit, the use of the light
emitting diode (LED) backlighting, and the age and condition of the sealed lead
acid battery (SLA) . The MSI-4300 will automatically turn the scale off when
the SLA battery drops to approximately 10.5V. You must recharge the battery
when this happens. SLA batteries do not suffer from memory effects and
actually benefit from frequent rechargings. Recharge the battery whenever it is
convenient even when it still has available life. Due to the small maintenance
discharge imposed on the battery by the MSI-4300 electronics, do not store the
MSI-4300 with the battery inside the scale for extended periods (longer than
7-10 days). Remove the battery from the scale.
Battery Use Guidelines
1) Recharge whenever convenient. Do not wait for the scale to shut itself off if
your work situation permits.
2) If you need the scale in continuous operation, keep a fully charged spare
battery at hand. Replace the drained battery as close as possible to the low
battery warning, or earlier.
3) SLA Batteries that have not been deep discharged should withstand 500 to
1500 charging cycles.
4) The low battery warning will indicate about 2-4 hours of additional use
before the MSI-4300 turns itself off.
5) If the MSI-4300 is not going to used again soon, remove the SLA battery to
prevent deep discharge while the unit is in storage.
BATTERY CHARGER
Each MSI-4300 is shipped with a battery charger designed to charge and
maintain the battery. Exact charging time will depend on the degree of dis-
charge of the battery. A battery removed when the low battery warning first
appears should take about 4 hours to fully charge.
