User manual
Operation 
Page 92 
English 
The battery protection function provides deep discharge protection for the 
battery, even when the fuel cell is switched off and the charging function 
does not take over. 
You can select the following menu options in the 
"Battery protection" menu: 
- Switch-on voltage 
- Enable/Disable 
- Factory defaults 
This option allows you to undo all the battery 
protection settings. Press [ok] to confirm or 
[] to cancel. 
CAUTION! 
Incorrectly set operating parameters may damage the battery. This may 
nullify your warranty. 
Please only use the precise values permitted for the battery parameter 
and battery protection settings. 
CAUTION! 
If you stop protective charging manually, battery protection is disabled 
until the next time the fuel cell is started. Deep discharge may damage 
your battery. 
Permitted value ranges 
for switch-on voltage 
lead-acid, gel, AGM bat-
teries and EFOY GO! 
Factory 
defaults 
Min. 
Max. 
User-
defined 
value: 
Battery protection 
(12 V) 
11.2 V 
10.5 V 
12.0 V 
Permitted value ranges 
for switch-on voltage 
LiFePO4 Batteries 
Factory 
defaults 
Min. 
Max. 
User-
defined 
value: 
Battery protection 
(12 V) 
11 V 
10.5 V 
12.5 V 










