LRP electronic GmbH
Hanfwiesenstraße 15
73614 Schorndorf
Deutschland
battery voltage, depending on the battery you are using. A wrong cut-off voltage can
lead to deep-discharging the battery, which damages it battery irrevocably.
• Avoid short-circuits! Short-circuiting the battery results in very high currents, which
damage the internal structure of a LiPo-battery. This leads to a loss of power and
capacity.
• Never charge LiPo batteries without a balancer. Charging without a balancer can
damage the battery. Please note, that your limited warranty will void if you charge
without balancer.
• Be sure, not to damage the outside of the LiPo-battery. The battery is only protected
by a heatshrink. The actual Lipo-cell is directly under this heatshrink. If the outer skin
of the cell gets damaged, the battery can no longer be used. Therefore take special
care, that no sharp objects like knifes, tools, carbon fibre edges or similar items can
damage the hardcase and/or the cells within it.
• When securing the LiPo-battery inside your model/device, you have to take care that
the LiPo-battery does not get damaged or warped in case of a crash. LiPo-batteries
are less mechanical resistant then NiMH-batteries in a metal can. Therfore pay spe-
cial attention that the LiPo-battery does not get damaged or warped by letting it fall
down, hitting it, bending it or by similar actions.
• Never charge several LiPo-battery packs at once with one charger. The different
capacities and charge levels can lead to serious overcharging of the battery, even if
you are using a charger with LiPo capabilities.
• Damaged packs cannot be used any longer. If the packs show signs of damage, are
bent or similar, do not use the packs anymore.
• The chemical reaction during charging and discharging a LiPo-battery is not fully
reversible. Due to that, LiPo-batteries loose capacity during their life-span. This is
normal and neither a manufacturing nor production fault.
DISPOSAL NOTE:
Damaged packs or packs, which can no longer be used are haza-
rdous waste and have to be disposed of accordingly.
6. Storage !!!
For a storage over a longer period of time, we recommend to charge the battery up
to 50% of the nominal capacity. Therefore fully discharge the battery pack and then
partially charge it with a charge current of 1C for 30 minutes or charge it up to a voltage
of 3.85-3.90V/cell. In this condition, the battery can be stored at least 3 months at 25°C
room temperature without the need of recharging it. If the batteries are stored longer,
be sure to make a complete charge and discharge cycle every 3 months and partial
charge it again for storage. We also recommend this procedure before the first use in a
model after the battery has been stored for 2-3 months or longer.
ATTENTION: NEVER STORE THE BATTERY COMPLETELY EMPTY OR FULLY CHAR-
GED. Both will harm the battery and lead to swollen battery cells. A fully charged
battery will have the same negative effects as a completely discharged battery.
Even if you are using your battery regularly every week, always pay attention that the
battery is partially charged with at least 30% of the nominal capacity during storage.
A partial charge with 1C charge current for 20 minutes is sufficient in this case, if the
battery was competely empty before.
For storing, we recommned to use our LRP LiPo Safe Box (No. 65848). If you pay at-
tention to the above mentioned notes, you can enjoy your LRP Ultimate Drift Hardcase
LiPo batteries for a very long time.
7. Interesting facts about Lipo batteries
• LiPo batteries shall only be charged at a temperature between 0-45°C. If this will not
be observed, the cycle life of the battery will be reduced drastically.
• The single cell open circuit voltage of a fully charged LiPo battery is 4.2V. The single
cell open circuit voltage of a 50% partial charged LiPo battery is approx. 3.85V. The
single cell open circuit voltage of an empty LiPo battery is approx. 3.3V.
• A voltage below 3.3V per cell without load is in either case harmful for a LiPo battery.
Therefore always avoid voltages below 3.3V per cell.
• It is not visible from the outside when a LiPo battery gets overcharged. The only
way to find this out is to measure the voltage of the LiPo battery. The battery does
not heat up nor does it swell when it gets overcharged. Therefore always check the
battery voltage during charging. If it exceeds the max. charging voltage stop the
charging process immediately and check all settings.
• We recommend to stop discharging a Lipo battery if the remaining capacity reaches
30% of the nominal capacity. With this, LiPo batteries will have the max. possible cy-
cle life. Real-Life application showed, that the cycle life of LiPo batteries is reduced if
the battery always gets completely discharged. This phenomenon can be seen with
all types of LiPo batteries.
Repair procedures / limited warranty
All products from LRP electronic GmbH (hereinafter called ”LRP“) are manufactured
according to the highest quality standards. LRP guarantees this product to be free from
defects in materials or workmanship for 90 days (non-european countris only) from the
original date of purchase verified by sales receipt. This limited warranty doesn´t co-
ver defects, which are a result of misuse, improper maintenance, outside interference
or mechanical damage. This especially applies on already used batteries or batteries,
which show signs of heavy usage. Damages or output losses due to improper handling
and/or overload are not a product fault. Signs of wear (loss of capacity) after intensive
usage are also no product fault.
The following points do also result in a service fee:
• Original power plugs replaced with a NON reverse polarity protected power plug
system (Stickpacks).
• Use of a non reverse polarity protected power plug system (Competition batteries).
• Send in the battery without power plugs.
• Removed or damaged original heatshrink.
To eliminate all other possibilities or improper handling, first check all other compo-
nents in your model and the trouble shooting guide, if available, before you send in
this product for repair. If products are sent in for repair, which do operate perfectly, we
have to charge a service fee according to our pricelist.
With sending in this product, the customer has to advise LRP if the product should be
repaired in either case. If there is neither a warranty nor guarantee claim, the inspection
of the product and the repairs, if necessary, in either case will be charged with a fee at
the customers expense according to our price list. A proof of purchase including date
of purchase needs to be included. Otherwise, no warranty can be granted. For quick re-
pair- and return service, add your address and detailed description of the malfunction.
If LRP no longer manufactures a returned defective product and we are unable to ser-
vice it, we shall provide you with a product that has at least the same value from one
of the successor series.
The specifications like weight, size and others should be seen as guide values. Due to
ongoing technical improvements, which are done in the interest of the product, LRP
does not take any responsibility for the accuracy of these specs.
LRP-Distributor-Service: - check www.lrp.cc
USER MANUAL
The crossed-out wheeled bin means that within the European Union the product must be taken to separate
collection at product end-of life. Do not dispose these products as unsorted municipal waste.
AA00622 © LRP electronic GmbH 2015
3C CHARGE CURRENT
UP TO 110C/55C
DISCHARGE CURRENT
HIGH-PERFORMANCE HARDCASE POWERPACKS
ULTIMATE DRIFT HARDCASE LIPO
