Minelab F3 Mine Detector Operation Manual page 49

Environmental:
Temperature (Operating)
Temperature (Storage)
Environmental Resistance
Batteries (4 required):
Alkaline
Rechargeable
Battery Reverse Polarity
Protection:
Patents and Trademarks:
Patents and trademarks may apply to this product.
Patents: www.minelab.com/patents.
-30 deg C to 60 deg C
-22 deg F to 140 deg F
-30 deg C to 80 deg C
-22deg F to 176 deg F
To MIL STD 810F:
Method 512.4 (Water immersion
IP67)
Method 514.5 (Vibration)
Method 516.5 (Shock)
D cell LR20
NiCad or NiMh D cell minimum
4000mAh capacity
Yes
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