Bantam e-STATION BC6 Operating Manual - page 5
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BC6
Please bear in mind of checking the following point before charge operation.
- Did you select the appropriate program, which are suitable for the type of battery?
- Did you set up adequate current for charging or discharging?
- Lithium battery pack can be composed with parallel and series circuits mixed. You have to
check the composition of the battery pack carefully before charging.
- Are all connections firm and safe, or is there an intermittent contact at any point in the circuit?
Charging
A specific quantity of electrical energy is fed into the battery during charge process. The charge
quantity is calculated by multiplying charge current by charge time. The maximum permissible
charge current varies according to the battery type or its performance, and can be found in the
information provided by the battery manufacturer. It is only allowed to charge batteries at rates
higher than the standard charge current if they are expressly stated to be capable of quick-charge.
- Connect the battery to charge to output terminal of the charger using suitable charge lead. They
are red, positive (+) and black, negative (-). Since the charger cannot detect the difference
between the internal resistance of the battery pack, cable resistance and connector transfer
resistance, the first requirement if the charger to work properly is that the charge lead should be of
adequate conductor cross-section. And also high-quality connectors (normally gold-contact type)
must be fitted to both ends.
- Refer to the information provided by the battery manufacturer regarding charging methods, and
verify the recommended charge current and charge time. Especially for Lithium batteries, you
have to follow the charge instruction provided by the manufacturer strictly.
- Do not attempt to disassemble the battery pack arbitrarily.
- You have to pay attention to verify the capacity and the voltage of the Lithium battery pack. It
may be composed of parallel and series connection mixed. In parallel link the capacity of the
battery pack is multiplied by the number of cells but the voltage remains same. That kind of
voltage imbalance causes a fire or explosion during charge process. We recommend you
compose the Lithium battery pack in series only.
Discharge
The typical purpose of discharge is to determine the residual capacity of the battery, or to lower
the voltage of battery to a defined level. When you discharge the battery you also have to pay
attention on the process same as charging. To avoid the battery becoming deep-discharged, set
the final discharge voltage correctly. Lithium batteries should not be deep-discharged to lower than
the minimum voltage, as this leads to a rapid loss of capacity or a total failure. Generally, you do
not need to discharge Lithium battery voluntarily.
- Some rechargeable batteries are said to have a memory effect. If they are partly used and
recharged before the whole charge is drawn out, they 'remember' this and next time will only use
that part of their capacity. This is a 'memory effect'. NiCd and NiMH batteries are said to suffer
from memory effect. They prefer complete cycles; fully charge then use until empty, do not
recharge before storage - allow them to self-discharge during storage. NiMH batteries have less
memory effect than NiCd.
- The Lithium battery prefers a partial rather than a full discharge. Frequent full discharges should
be avoided if possible. Instead, charge the battery more often or use a larger battery.
- The brand-new NiCd battery pack is partially useful with its capacity until it has been subjected
to 10 or more charge cycles in any case. The cyclic process of charge and discharge will lead to
optimise the capacity of battery pack.
Those warnings and safety notes are particularly important. Please follow the instructions
for a maximum safety; otherwise the charger and the battery can be damaged violently. And
also it can cause a fire to injure a human body or to lose the property.
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