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Battery
• Two initially supplied (2) AA alkaline batteries power the 512 HWS
• The HWS is designed to maintain constant brightness at a particular setting as the
battery drains down The reticle brightness will not fade as the battery runs down,
but rather, shut down abruptly
• The first indication of the battery draining is the reticle blinking when the unit is
turned on (
see Electronic Features, page 16
)
• Another indication of a low battery is the reticle pattern blinking off and on during
recoil With high recoil guns, this can occur before the battery check indicates low
battery condition
• If the reticle pattern blinks off and on during recoil or turns off suddenly, replace
the battery
PRO TIP:
It is always good practice to replace the battery with a fresh ones before a mission.
Battery Recommendations
We recommend the use of Energizer
™
batteries with the 512 HWS
• Alkaline AA batteries
Alkaline AA batteries from different manufacturers are not all constructed the
same way Tests show some brands are more susceptible to degradation by the
shock of recoil
• Lithium AA batteries
Lithium AA batteries offer longer life, particularly at temperatures below freezing
For this reason Lithium batteries are recommended for cold weather operations
The battery checking function, which is based on the characteristics of alkaline
batteries, does not operate properly when Lithium AA batteries are used in the
model 512 and may not indicate a low battery condition until very little battery
life is left
