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WARNING AND SAFETY NOTES
Connect the battery to the terminal of the charger: red is positive and black is negative. Due to the
difference between resistance of cable and connector, the charger can not detect resistance of the battery
pack, the essential requirement for the charger to work properly is that the charge lead should be of
adequate conductor cross-section, and high quality connectors which are normally gold-plated should be
fitted to both ends.
Always refer to the manual by the battery manufacturer pertaining to charging methods, recommended
charging current and charging time. Especially, the Lithium battery should be charged according the
charging instruction provided by the manufacturer strictly.
Attention should be paid to the connection of Lithium battery especially.
Do not attempt to disassemble the battery pack arbitrarily.
Please get highlighted that Lithium battery packs can be wired in parallel and in series. In the parallel
connection, the battery capacity is calculated by multiplying single battery capacity by the number of cells
with total voltage stay the same. The voltage imbalance may cause fire or explosion. Lithium battery is
recommended to charge in series.
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Ultimate 400W
Discharging
The main purpose of discharging is to clean residual capacity of the battery, or to reduce the
battery voltage to a defined level. The same attention should be paid to the discharging process as
charging. The final discharge voltage should be set up correctly to avoid deep-discharging. Lithium
battery can not be discharged to lower than the minimum voltage, or it will cause a rapid loss of
capacity or a total failure. Generally, Lithium battery doesn't need to be discharged. Please pay
attention to the minimum voltage of Lithium battery to protect the battery.
Some rechargeable batteries have a memory effect. If they are partly used and recharged before
the whole charge is accomplished, they remember this and will only use that part of their capacity
next time. This is a memory effect. It is said that NiCd and NiMH batteries are suffering from memory
effect. NiCd has more memory effect than NiMH.
Lithium batteries are recommended to be discharged partially rather than fully discharged. Frequent
full discharging should be avoided if possible. Instead, charge the battery more often or use a
battery of larger capacity. Full capacity cannot be reached until it has been subjected to 10 or more
charge cycles. The cyclic process of charge and discharge will optimize the capacity of battery pack.
Ultimate 400W
WARNING AND SAFETY NOTES
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