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MillerTech 1665-BT

The MillerTech 1665-BT is a battery pack with a nominal voltage of 16V, 1.04Kwh of energy, LiFePO4 (Lithium Iron Phosphate) cells, a continuous discharge of 65 A, 4000 cycles and an ingress rating of IP65 or higher.

Last updated: 20 October 2026

Battery and charging

Energy
1.04Kwh

“CAPACITY- 65AH ENERGY STORAGE- 1.04Kwh NOMINAL VOLTAGE- 16V”

Source: millertechenergy.com/product/16v-65ah-battery

Voltage
16V

“the 16V nominal voltage maintains a higher, more consistent voltage level”

Source: millertechenergy.com/product/16v-65ah-battery

Chemistry
LiFePO4 (Lithium Iron Phosphate)

“16V 65Ah LiFePO4 (Lithium Iron Phosphate) Marine Electronics Battery”

Source: millertechenergy.com/product/16v-65ah-battery

Rated charge cycles
4000 cycles

“this battery boasts an impressive cycle life, often exceeding 4000 cycles at 100% Depth of Discharge”

Source: millertechenergy.com/product/16v-65ah-battery

Maximum continuous discharge
65A

“MAX CONTINUOUS DISCHARGE CURRENT- 65A”

Source: millertechenergy.com/product/16v-65ah-battery

Battery care and safety

Operating temperature range
-4°F-140°F

“DISCHARGE TEMP. RANGE (operating temp) -4°F-140°F”

Source: millertechenergy.com/product/16v-65ah-battery

Ingress protection
IP65 or higher

“With an IP65 or higher water and dust-proof rating, this battery is designed to withstand the harsh conditions”

Source: millertechenergy.com/product/16v-65ah-battery

Temperatures it may be charged in
25°F-131°F

“CHARGE TEMPERATURE RANGE- 25°F-131°F”

Source: millertechenergy.com/product/16v-65ah-battery

Size and fit

Overall dimensions
15.25” x 4.5” x 6.5″

“Size 15.25” x 4.5” x 6.5″”

Source: millertechenergy.com/product/16v-65ah-battery

Sources

  • 16V 65AH Marine Electronics Lithium Battery W/ BT (1665-BT) - MillertechArchived document

    Source: millertechenergy.com/product/16v-65ah-battery

    Retrieved October 11, 2026