Additional Information About Lithium Rechargeable Batteries - Reely Deathwatcher XL Bedienungsanleitung

9.2

Additional information about lithium rechargeable batteries

Modern lithium rechargeable batteries have a significantly higher capacity than NiMH and NiCd
rechargeable batteries and are more lightweight. This makes lithium batteries (especially lithium
polymer batteries) particularly suitable for use in model making.
However, lithium rechargeable batteries require particular care to ensure safe charging/discharg-
ing, operation and handling.
The following section provides an overview of the potential hazards associated with lithium re-
chargeable batteries and explains how these hazards can be avoided to ensure a long lifespan.
For details, see section 9.1.
The casing of many lithium rechargeable batteries is made of a thick film, which is very sensitive. We recommend
using only batteries with a sturdy casing (hard case design) for the vehicle. Do not dismantle, damage, drop or
insert any objects into lithium rechargeable batteries! Do not apply mechanical loads or pull on the rechargeable
battery connection cables (e.g. when disconnecting from the speed controller). This may cause a fire or explosion!
Pay attention to this when the rechargeable battery is attached to or removed from the model.
Ensure that the rechargeable battery does not overheat during use, recharging, discharging, transport, or stor-
age. Do not place the rechargeable battery next to heat sources (e.g. a speed controller or motor) or expose it
to direct sunlight. Overheating of the rechargeable battery may cause a fire or explosion! The temperature of the
rechargeable battery must not exceed +60 °C. (Please observe any additional manufacturer's instructions for the
rechargeable battery, if applicable!)
Low temperatures also adversely affect the service life. Therefore, always keep batteries in a dry, frost-free room.
If there are any signs of damage or the outer casing starts to swell or bloat, discontinue use immediately. Do not
continue to charge it. This may cause a fire or explosion!
Exercise caution when handling the damaged rechargeable battery and use suitable protective gloves. Dispose
of the rechargeable battery in an environmentally friendly manner.
Never store damaged rechargeable batteries in an apartment or a house/garage. Damaged or bloated lithium
rechargeable batteries can suddenly catch fire or explode.
A lithium rechargeable battery fire is difficult to extinguish and produces poisonous gases. There are commercially
available special extinguishing agents for dealing with LiPo fires (fire extinguishers, extinguishing granules, etc.).
Always use a compatible charger to charge lithium rechargeable batteries and ensure that the charging method
is correct. Do not use NiCd, NiMH or lead battery chargers, as these may cause a fire or explosion! Always select
the correct charging method for your rechargeable battery.
When charging a multi-cell lithium rechargeable battery, be sure to use a balancer (sometimes called an equal-
iser). Top-notch chargers for lithium rechargeable batteries usually come with an integrated balancer (please refer
to the operating instructions for the charger you are using).
Such a balancer equalises the cell voltage of all battery cells during charging. Thus, discharging (during vehicle
operation) no longer leads to a significant voltage reduction in one of the cells over time, which would eventually
cause a deep discharge of the cell (rendering it and the entire rechargeable battery unusable).
The charge rate for LiPo rechargeable batteries must not exceed 1C (or the value stated in the battery instruc-
tions). This means that the charging current must not exceed the rechargeable battery capacity (e.g. battery
capacity = 1000 mAh, max. charging current = 1000 mA = 1 A).
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