35
CHOOsInG & usInG BATTERIEs FOR yOuR kEsTREl
Your Kestrel meter is powered by two AAA size batteries. Here is a guide to selecting the right chemistry/type of battery
for your meter:
BATTERY TYPE
EXAMPLE BRAND
NAMES
SELECTION CONSIDERATIONS
Lithium AAA
Recommended by
Kestrel for most
applications!
Energizer® Ultimate
Lithium
*Energizer owns a
patent on Lithium
chemistry batteries in
the USA.
• Improved cold-weather operational range.
• Best capacity when streaming data via Bluetooth®.
• Relatively high cost. (Note: because the Kestrel is a low power
circuit, there is little advantage to the higher priced “Ultimate”
batteries.)
• Somewhat less available – need to purchase spares in advance.
Low Self-Discharge
Rechargeable NiMH
Eneloop®
Duracell®
StayCharged®
Tenergy® Centaura®
Energizer® Recharge
PowerPlus®
• Precharged rechargeable batteries which hold their charge for
up to one year.
• Lowest capacity option.
• Option to charge multiple sets for use in the field offers cost
savings, particularly with Bluetooth® data streaming.
• LESS likely to leak and cause corrosion when left in the Kestrel.
Alkaline AAA
Duracell® Ultrapower
Duracell® Procell®
Energizer® Max
Rayovac®
(many others)
• Lowest cost option.
Most readily available.
• Easy to obtain and use for intensive, short-term operations.
• Restricted cold weather performance – Kestrel circuitry will not
operate below 0°F/-18°C.
• Environmental impact of disposal.
• MOST likely to leak and cause corrosion when left in the Kestrel.
Follow below guidelines for storage and removal carefully!
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