Best Secondary Battery

RAYVENGE HT20 Coon Coyote Hog Hunting Lights 1200 Lumen Headlamp with Camo Hat White Red Green Amber 4 Colors 7 Position Switch Rechargeable Waterproof Lamp and Hard Cap

4 COLORS MODE: Applied Cree XPL LED, Max 1200 lumen beam-white. There are a white main light, two secondary white light, a red light, a green light and a amber light . Use different color to hunt for different predator, such as red light for raccoon, green light for hog..
7 POSITION SWITCH: Rotate clockwise to get white secondary light 10 hours, white main light low brightness 29 hours, medium brightness 11 hours and high brightness 4.5 hours. Rotate anticlockwise to get red light 12 hours, green light 12.5 hours and amber light 9.5 hours..
HUMANIZATION DESIGN: Don’t need to touch the back side of head any more. We designed switch onto the headlamp make user reach the switch easily. Can turn on the switch easily by one hand even wear gloves. Free your hands and focus on hunting..
SIMPLE INSTALLATION: Stainless bracket designed on the helmet and headlamp, snap the headlamp at the head and the battery pack at the back within several seconds. It is very easy to operate whatever you install or detach, only several seconds to finish..
ALL-WEATHER HEADLAMP: Our headlamp and battery pack are waterproof design. It still can work even in the raining day or immerse in water. A plastic shade built in the helmet to protect the head and make the headlamp stable..

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Ricardo Beverly Hills Seahaven 2.0 Softside Medium Check-in

Abrasion and water-resistant polyester exterior. Smooth-rolling any-direction dual wheels recessed for stability. Ergonomic telescoping handle with comfort grip..
Protected USB charging port with internally routed cord and battery pouch (carry-on only.
battery not included). TSA-friendly 3-1-1 toiletries bag. Two roomy easy-access zip pockets..
Corner protectors. Lockable zippers (lock not included). Padded top and side carry handles..
Spacious main packing compartment. Adjustable compression straps. Tie down straps..
Secondary packing compartment with zip-closed divider. 1.5-2-in. expansion for extra packing space. Bonus: large packing cube, included for added organization..

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BK Precision 891 - Benchtop LCR Meter 300 kHz

Test frequency: 100Hz, 120Hz, 1KHz, 10KHz, 40kHz, 100KHz.
Large capacity lithium battery power supply.
Supporting DC Resistance and Electrolytic Capacitance Measurement.
Automatic Recognition of Component Measurement.
Support screening and deviation measurement.
2.8-inch TFT display, 4-bit semi-display.
Display digit: Main parameters: 5 bits, secondary parameters: 5 bits.
Adjustable measuring speed, manual and automatic range.
Short circuit correction with open circuit.
Standard configuration:1. Mini-USB cable.
Adjustment of backlight brightness, Chinese and English are optional,USB device and automatic power-off time.

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Ampper 12V 140Amp Dual Battery Isolator, Battery Voltage Sensitive Relay (VSR) Smart Battery Isolator for Car, Vehicle, RV, ATV, UTV and Boat

Purpose: this voltage sensitive relay is design for two battery systems (SUITABLE for Acid-Lead batteries, NOT SUITABLE for Lithium batteries), allow to having two separate power sources while charging by one alternator, it's all need to charge and isolate two battery systems..
Primary Battery Protected: cuts in at 13.3 volts and cuts out at 12.8 volts. Ensure your primary battery is always charged and ready to start your engine, the secondary will be charged after the primary battery's volts exceed 13.3 volts..
Heavy Duty: this voltage sensitive relay is heavy built to suitable for almost anywhere even off-road, which is water resistant, shock resistant, dust proof and withstand unexpected extreme weather environments..
Compatible: used for DC 12 V two battery systems isolate and charge, universal used for car, vehicle, RV, ATV, UTV and boat, also two battery electrical equipment..
Easy to use: this VSR comes with mounting plate and 4 bolts for install. 100% SATISFACTION: no reason for return or change..

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Digital Oscilloscope Kit,Aideepen Handheld oscilloscopes with DC/AC Power Supply and BNC-Clip Cable Probe

【Easy】This handheld oscilloscopes is a complete finished product, without welding,easy to operate and carry,very suitable for your electronic project..
【Added】We added a 9V battery buckle, you just need to connect the 9V battery use it at outdoor..
【Clearly display】2.4-inch TFT Clearly display the test results, and can freeze/save waveform display content at any time.(including frequency, period, duty ratio etc.).
【Function】5mV/div - 20V/div high Sensitivity,With Auto/Normal/ Single trigger model,added the rotary encoder, makes parameter adjustment quicker and easier.You also can conduct secondary development , for example, it can be changed to Millivoltmeter, data loggers..
【Package】1* Oscilloscope,1* BNC-clip cable,1*User Guide,1*AC Power Adapter,1*9V battery buckle(NOT Included 9V battery).Pls contact us if have any quality issue and need support, will reply within 24hours..

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RovyVon E4 Titanium Flashlight USB C Rechargeable 700 Lumen AAA Pocket Flashlights Dual Power Mini Handheld-Size with Lockout Mode,Waterproof for Everyday Carry, Camping,Hiking,Emergency

...ck ). You could even use it during replacing the battery, you don’t even put yourself in the dark, which is much more practical for working at night, camping, hiking or other outdoors activities..
Friendly User Interface: Momentary on mode allow you to press and hold the secondary button of this edc titanium flashlight to quick access to high mode, release to turn off easily. You could also double click button 1 to switch to Memory mode no matter stay on any general setting (Except for strobe mode)..
Long Lasting Flashlight for Outdoors: This small flashlight has a runtime of up to 54 hrs under moonlight mode, which is a advantage for camper since they are using much lower settings, especially around camp. High mode(700 lumens) also allow you to see the objects in 1.5 m clearly..
Emergency Flashlight: This edc flashlight is not only can be your everyday carry flashlight, but also can support you when you in trouble(Rapid double click secondary button to Strobe mode no matter stay on any working mode)..

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15.6\ Portable Monitor - OLED Touch Monitor with Battery by INNOCN - Travel Second Touch Screen for Photo Editing with 4K, 100% DCI-P3, 100000:1, USB C External Monitor for Laptop,PC, Phone,Consoles

003cb003eMobile Screen with OLED Sharp Pictures003c/b003e-- Self-lit pixels technology offers this external display incredible color accuracy (100% DCI-P3) , top-tier contrast(100000:1),limitless range of colors (1.07 billion) and real 4K(3840*2160P) for deepest blacks, richest colors, and most realistic picture quality..
003cb003eOn-the-go Secondary Screen003c/b003e-- USB C portable monitor with built-in 5000mAh battery (10000mAh when voltage is 3.8V) can deliver up to 4hrs of work and play in one full charge.
Not even to say Ultra-Slim (0.27") & Ultra-light(2lb) design for outside working or playing condition..
003cb003e10-point Touch Secondary Monitor003c/b003e-- Tap, swipe and pinch to zoom, just like a tablet or touch-screen laptop. You definitely know portable touchscreen monitor can be more convenient faster than normal portable monitor..
003cb003ePlug-and-play Dual Screen-003c/b003e- No need for any driver installation, you need only connect this second display with the compatible port that can output video / audio signal ( USB Type-C and mini HDMI connection ).
003cb003eTrue Second Screen003c/b003e-- secondary,mirror or span mode,you choose by your need.
This separate screen works for camera,laptop,pc,smart phone,switch,xbox,ps3/4/5 and more.

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Nitecore New P30 1000 Lumen 676 Yard Long Throw Hunting Flashlight, NL2150R with Build-in USB-C Port, and LumenTac Organizer

1000 LUMEN LONG THROW FLASHLIGHT - The NEW P30 comes with a 1000 lumen beam that can reach up to 676 yards of throw..
EXTENDED BATTERY RUNTIME - With the included 5000mAh rechargeable battery, the NEW P30 is capable of up to 40 days of extended runtime with over an hour on turbo..
EASY OPERATION - Tail switch is capable of momentary and constant on, and a secondary mode switch cycles through settings..
DURABLE CONSTRUCTION - The NEW P30 is built from durable aero grade aluminium alloy and rated IPX8 waterproof..
COMPLETE STARTER PACKAGE - Included is the NEW P30, 5000mAh USB-C rechargeable battery, USB-C charging cable, holster, lanyard, spare o-ring, spare tail switch cover and LumenTac battery case..

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Monstrum Ghost Red Dot Sight | 3X Magnifier with Flip to Side Mount | Combo | Black

This bundle includes both the Monstrum Ghost Red Dot Sight and the Monstrum Ghost 3x Magnifier with Flip to Side Mount.
Close range electronic sight for rapid and accurate target acquisition of close range targets out to 100+ yards.
State-of-the-art laser diode optical system.
provides up to 10 times the brightness intensity and 5 times the battery life of cheaper LED powered red dot sights.
up to 50,000 hours of battery life on a single CR2032 battery.
Ghost 3x magnifier built for use with red dot sights, providing a secondary 3x magnified sight picture.
Flip-to-side mount with quick engage mechanism allows for rapid transition between red dot usage with or without magnification - allowing for standard 1x red dot usage for close range targets and 3x magnification for mid to long range targets.

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