MODSTER 290596, Руководство пользователя

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Manual MODSTER BO-105
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Technical data:
Rated voltage: 3.7 volts/cell
Low charge rates protect the battery,
high charge rates reduce the number of cycles by approx. 10%.
End-of-charge voltage: 4.2 volts/cell (to be maintained to within 0.05 volts)
Discharge rate / discharge current:
Depending on battery type, e.g. a 25C battery can be discharged at a constant rate of 25C (25 times the rated capa-
city in Ah), and for a short time (for 3 seconds) up to 50C (twice the constant discharge rate). Examples:
25C (discharge rate), means capacity value x C rate = discharge current.
25C-battery with 1000mAh (1Ah) x 25C = 25A discharge current continuous/50A short time
30C battery with 1000mAh (1Ah) x 30C = 30A discharge current duration/60A short-term
45C battery with 1000mAh (1Ah) x 45C = 45A discharge current duration/90A short-term
End of discharge voltage:
Lithium cells should be disconnected under load, at the latest at about 3 volts /cell. If the voltage falls below the
limit, the cell may be destroyed, explode and start to burn.
Maximum temperatures
Charging: +45°C, disch60°C
Temperature behavior
Lithium cells have a distinct temperature curve.
At temperatures below 10...15°C the removable capacity is significantly lower than at 20...35°C. Even at higher tem-
peratures (above 35...40°C) the removable capacity is noticeably lower.
The maximum external cell temperature should not be exceeded during both charging and discharging, otherwise
the cell will suffer permanent damage in the form of capacity loss. If exceeded for a longer period of time, it will be
destroyed and may explode and start to burn.
Self-discharge:
Lithium cells have an extremely low self-discharge rate (about 0.2% per day) and therefore can be stored for long
periods without problems. If the voltage drops below 3 volts/cell, it is essential to recharge.
Deep discharge must be avoided, otherwise the cell will suffer permanent damage in the form of capacity loss and
render the battery pack unusable.
Storage:
Before longer storage, the batteries should be charged to the storage voltage of approx. 3.8...3.9 volts/cell. After
approx. 3-5 months they should be recharged. Never store or keep fully charged but only fully charge immediately
before use. Store batteries in a fireproof lithium safe or tested lithium bag. Store and keep at room temperature (17-
22°C).
Lifetime:
The theoretical life of a cell at low discharge currents, is approximately 500 charge/discharge cycles. At medium
discharge currents, the lifetime is lower and is only about 300 cycles. At high discharge currents, the number of cy-
cles is in the range of 150-200 cycles. At very high discharge currents even significantly lower.
After that, the battery is used up and must be disposed of. If the lithium batteries are only discharged to approx. 70-
75% during operation, they will thank you with a longer service life. Stop operation before a noticeable loss of power
becomes apparent. Disconnect the battery from the load after operation to avoid further discharge.
Memory effect, cell capacity
Since lithium cells have no memory or lazy-battery effect, the discharge-charge (cycling, matching) required for NC
and NiMH batteries is not necessary. Discharging before charging should also be avoided. Since the capacity of the
lithium battery decreases slightly with each charge, this would cause unnecessary loss of capacity to the cell.
Interconnecting battery packs
Interconnecting lithium cells in series or parallel to increase voltage or capacity is problematic because of the diffe-
rences in charge voltage and capacity. Only selected cells can be connected together to form a battery pack. For our
lithium battery packs, only selected cells are connected together to form a battery pack.
Disposal of rechargeable batteries
Never dispose of rechargeable batteries in the household waste. To protect the environment, give defective or used
batteries only discharged to the appropriate collection points. These are all sales points for batteries and recharge-
able batteries, or municipal special waste collection points. To avoid short circuits, please tape off any bare contacts
with adhesive tape.
Disclaimer
Since MODSTER cannot supervise the handling of the batteries, any liability and warranty is excluded.