Commercial in Confidence
Smartfind EPIRB service manual
Page 27
Battery replacement involves complete disassembly of the EPIRB, followed by re-
assembly, resetting of the PCB battery life and then leak testing to prove the watertight
sealing. The procedures elsewhere in this manual should be used as follows:
1. Assess the EPIRB as section 2.
2. Disassemble as per section 3.5.
3. Fit new battery: with new o-rings and silica gel bag.
4. Fit the new expiry date label to the EPIRB body. Please note that some early units
have the expiry date marked on the main body label – this should be removed.
5. Re-assemble as section 3.6 (using new parts)
6. Reset PCB
7. Leak test as section 3.7
8. Functional test as section 3.2
9. Message read as per section 3.3 and compare to Identity Label.
10. Fit the second expiry date label over the date on the enclosure side label (if
applicable). Fit sealing label over the date label to protect it.
Battery disposal
Hazardous chemicals
Use gloves
Lithium battery packs should be discharged slowly, then disposed of through an
approved environmental disposal agent, or in accordance with local regulations.
The rate of discharge must not exceed 100mA. It is recommended to discharge through a
resistance of a minimum value of 10 ohms per volt of the nominal battery voltage eg a
resistor of 90 ohms (2W rating) is satisfactory for a 9V battery.
UNDER NO CIRCUMSTANCE MAY THE BATTERY BE SHORT-CIRCUITED.
If the battery shows signs of electrolyte leakage, do not attempt to discharge. Refer to the
Safety Notices (section 1.4) for advice on correct handling.
