User manual
Safety Information 
Page 61 
English 
CAUTION! 
Impurities in methanol! 
Original EFOY fuel cartridges contain methanol that has been approved by 
SFC. Even slight impurities or foreign particles in commercially available 
methanol may cause irreversible damage to the device, and may nullify 
the warranty or guarantee. 
Use only original EFOY fuel cartridges! 
2.4  Correct use 
The EFOY devices produced by SFC Energy AG are automatic charging de-
vices for 12 V lead accumulators (batteries), or SFC qualified Lithium Iron 
Phosphate batteries (LiFePO4). Please note the following: 
  The devices must only be used to charge accumulators (batteries) that 
conform to the technical specifications of the device (see chapter 6 
"Specifications" on page 104). 
  The devices must only be operated with original EFOY fuel cartridges. 
  The devices are not intended to be used as an emergency power sup-
ply for medical, life-sustaining or agricultural systems. 
  Devices with a defective or damaged housing must not be operated. 
  The devices are not intended for industrial or permanent use. 
2.5  Certification 
Declaration of conformity 
SFC Energy AG, Eugen-Sänger-Ring 7, 85649 Brunnthal-Nord, Germany, 
hereby declares that the EFOY COMFORT 80, EFOY COMFORT 140 and 
EFOY COMFORT 210 conform to the provisions of the EC Directive on elec-
tro-magnetic compatibility (2004/108/EC). The following harmonized 
norms apply: 
DIN EN 61000-6-1, DIN EN 61000-6-3 
Radio Frequency Interference (RFI) (FCC 15.105) 
This equipment has been tested and found to comply with the limits for 
Class B digital devices pursuant to Part 15 of the FCC Rules. These limits 
are designed to provide reasonable protection against harmful interfer-
ence in a residential environment. This equipment generates, uses, and 










