Technical Data - Ottobock 757B20 Gebrauchsanweisung

Note!
Only clean, grease-free and undamaged compo-
nents facilitate the flawless supply of electricity to
the components. Use a Q-tip and some alcohol for
this reason to clean the electrical contact points of
chargers, EnergyPacks and battery receptacles
regularly. The coating of the contact surfaces must
not be damaged by pointed or sharp objects under
any circumstances: penetrating humidity and espe-
cially body sweat could cause serious oxidation!
6 Changing the EnergyPack
The EnergyPack is designed so that it can easily be removed for
recharging. To do this, push the engaging lever (fig. 4, pos. 1)
away from the EnergyPack.

7 Technical Data

Capacity
Charging time (full charge)
Nominal voltage (average)
Weight
Operating temperature
Service life
Operating time
8 Liability
Otto Bock Healthcare Products GmbH, hereafter referred to as
manufacturer, assumes liability only if the user complies with the
processing, operating and maintenance instructions as well as
the service intervals. The manufacturer explicitly states that this
product may only be used in combination with components that
10 | Ottobock
757B20
900 mAh
ca. 3,5 h
7, 2 V
65 g/2 / oz.
1
4
0 – 50 °C
2 years
depending on level of usage,
approx. one day
757B21
800 mAh
ca. 3,0 h
7, 2 V
51g/1 / oz.
3
4
0 – 50 °C
2 years