Modster EC-135 Betriebsanleitung Seite 4

Manual MODSTER EC-135
5. Battery
- Keep the battery pack away from children.
- Be careful when handling battery packs with high cell counts. It is essential to ensure good insulation, there is a risk
of electric shock.
- Do not allow leaking electrolyte to come into contact with fire, it is highly flammable and can ignite. In the event
of an explosion or fire, never extinguish the batteries with water. Only extinguish with dry extinguishing agent
(sand, etc.) or smother the flames by covering.
- The electrolyte liquid should not get into the eyes, if it does, wash it out immediately with plenty of clean water and
then consult a doctor.
- The electrolyte fluid can also be washed off clothing and other objects with plenty of water.
- Do not expose lithium batteries to excessive cold or heat and direct sunlight. Do not heat the battery, throw it into
a fire or place it in the microwave. Charge and store batteries in a fireproof container or lithium safe (e.g. AN-262582).
- Do not subject battery to pressure or impact, deform or throw. Protect from accident or fall. Never use damaged
batteries and dispose of them properly.
- Never place the charger or connected batteries on flammable or conductive surfaces. Never operate in the vicinity
of flammable materials or gases. Charging the battery in the model can cause the model to burn down in case of a
defect! Do not leave the battery unattended during the charging-discharging process or during operation.
Read the charger instructions carefully before charging.
- Do not charge batteries which are strongly heated or undercooled. Allow batteries to cool down to approx. 20-30°C
or warm them up before charging.
- Only cells of the same capacity and make may be charged together.
- Make absolutely sure that the polarity of the batteries is correct and prevent short-circuits, especially through
non-insulated connector systems.
- In case of contact with water or penetration of moisture into the battery, there is a risk of explosion due to short-cir-
cuiting.
- Do not charge with reverse polarity.
- Do not solder directly to the battery.
- Do not modify or open battery.
- Do not charge batteries above 4.2 volts (+/-0.05V) per cell and do not discharge below 3 volts per cell.
- Charge batteries only with suitable lithium battery chargers with connected or built-in equalizer/balancer, never
connect directly to a power supply.
- Do not use the battery in locations subject to high static discharge.
- All this can cause the battery to be damaged, explode or catch fire.
- Never charge batteries unattended!
- Never charge, store or keep the battery in the model or inside a car.
Charging procedure
Only use chargers that have been expressly approved by the manufacturer for use with lithium batteries. Lithium
batteries can only be charged using the CC-CV charging procedure. Make sure that the charger is correctly selected.
In the first charging phase, the charger keeps the charging current constant. With a charging current of 1C and a
discharged battery, this first phase takes approx. 50- 60 minutes. A battery capacity of approx. 80-90% is charged.
When the end-of-charge voltage of 4.2 volts/cell is reached, only the voltage is kept constant and the charge current
drops. A further 35-40 minutes are required to charge the remaining capacity. If the value reaches the lower current
limit of approx. 5-10% of the specified charging current, the charging process is switched off by the charging device.
At a charge rate of 1C, this means that the entire charging process takes approx. 90 minutes when the battery is
discharged. A lower charging current of 0.3-0.5 C is recommended for the first charging process. This measure facili-
tates balancing and increases the service life of the battery.
Voltage sensor cable
Due to different cell temperatures during the discharge process, the individual cells gradually acquire different char-
ge states and voltage levels. The total charge voltage applied is then not distributed evenly across the individual
cells, which means that cells with a higher voltage level can be overcharged.To measure the individual cell voltage,
the lithium batteries have a separate plug connection (voltage sensor cable), from which a cable leads to each indi-
vidual cell.The black cable (Pin1) is the negative terminal of the first cell, Pin2 the positive terminal. The next contact
in each case is the respective positive pole of the subsequent cell.
Connect the voltage sensor cable to the Equalizer/Balancer connector on the charger for charging, which conveni-
ently and automatically brings all cells to the same voltage value at the same time.
In addition, the voltage of each individual cell is monitored.
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