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User’s Manual T1-16 Tactical Ascender
SYSTEM DESCRIPTION
Battery
The internal high power lithium ion battery
is encapsulated in the ascender. This battery
can be charged at any time, no so called me-
mory effect will reduce the battery capacity.
Battery Life
Li-ion batteries start degrading as soon as
they leave the factory. This is simply the
nature of the chemical technology in all Li-
ion rechargeable batteries. Li-ion batteries
may last two or three years from the date of
manufacture whether you use them or not.
So it is normal and expected for your ActSafe
battery to slowly lose the capacity.
The more often you charge the battery
the faster this will happen. So asking ”how
long should my battery last?” cannot be
answered in terms of time. The lifespan of
the battery may be around 250-350 charge
cycles, but lifespan is in the end governed
by, among other things, the way the ascen-
der is used, how often the battery is charged
and the surrounding temperature during
use and charging. This is the industry stan-
dard for ALL Li-ion batteries.
Use in low temperatures
The capacity of the battery depends on the
battery temperature. Extreme temperatures
will affect the capacity, most noticeably in
cold temperatures.
Even when battery temperature is as low
as -20°C the accumulated lifted height with
120 kg will not be less than approx 250 m.
(normally 300-400m).
When used in cold environments maintain
the battery temperature by keeping it in the
transportation box as long as possible. This will
prolong the time before performance is limited.
When using the ascender with a cold battery,
be aware that the initial lift speed capacity
may be limited. It is only possible to ascend at
lower speeds before the battery warms up and
normal performance can be expected.
RECOMMENDATION
It will take time before the battery tem-
perature is decreased when put in a cold
environment. Tests show that it will take
4.5 hrs for a room tempered ascender kept
in the transportation box to reach 0°C when
put in -15°C. For an ascender stored outside
its box the same time will be 3 h.
A battery temperature of 0°C is equivalent
to the initial lift speed being reduced to 80%.
It is only the initial performance that is
limited when the battery of the ascender is
cold. When used the internal temperature
will rise and normal performance can be
expected after approx 50 m.
When the battery is cold it can behave as if
the charge level is low. This may cause the
battery indicator to show the wrong level.
The indicator will return to normal after next
recharge.
Use in high temperatures
The capacity is less affected by high battery
temperature. The range will be slightly
decreased.
Tests show that the battery temperature
limit was reached after approx 75% of the
battery capacity was used for strenuous
work with a battery preheated to 50°C.
The ascender is well designed to do its
work across the full temperature range.
The risk of over heating is very small.
If used in conditions potentially able to heat
the ascender to temperatures above 50°C, keep
the ascender cool to prevent the small risk of
overheating.
RECOMMENDATION
