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3.75V 5000mah 18.75WH CELLS W/ BMS & BULLET CONNECTOR
3.75V 5000mah 18.75WH CELLS W/ BMS & BULLET CONNECTOR
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3.75V 5000mah 18.75WH CELLS W/ BMS & BULLET CONNECTOR

Regular price $1.25 $0.00 Unit price per

WHO NEEDS CELL LEVEL FUSING WHEN EVERY CELL HAS A BMS AND A TEMPERATURE SENSOR? 

THESE ARE GREAT LITTLE PACKS, PERFECT FOR DIY PROJECTS. THEY CAME OUT OF VERSION 1 RING DOORBELL DEVICES. WE TESTED OVER 100 OF THESE AND THEY TESTED AROUND 95% ON AVERAGE. THIS IS A PERFECT EXAMPLE OF HOW TECHNOLOGY MOVES FASTER THAN THE BATTERIES DEGRADE. THESE CAME OUT OF UNITS THAT WERE "UPGRADED" OR OVERSTOCK AND ONLY IN SERVICE FOR A FEW MONTHS. SO THESE BATTERIES PROBABLY ONLY SAW A CYCLE OR TWO. THEY ONLY CYCLE WHEN A HOME LOSES POWER WHICH IS VERY RARE. 

WE ADDED BULLET CONNECTORS TO THESE PACKS. WE HAD INTENDED TO USE THESE FOR A PROJECT WHERE WE BUILT THESE INTO PACKS AND THESE ARE THE LEFTOVERS FROM THAT PROJECT. 

EACH PACK IS BASICALLY 2x 2500mah CELLS IN PARALLEL, EACH WITH THEIR OWN 1A BMS. WE TESTED THESE PACKS AT 2A CONTINUOUS FOR A FULL DISCHARGE SO YOU CAN CERTAINLY DISCHARGE AT A .4C RATE.

THIS WILL MAKE A VERY LONG LASTING, ENERGY DENSE BATTERY PACK WITH SUPER SAFETY FEATURES BUILT IN. NO WASTED DIAMOND SPACE LIKE YOU GET WITH CYLINDRICAL CELLS.

IF YOU BUILD A PACK WITH THESE YOU WILL QUICKLY DISCOVER WHAT A GREAT VALUE THIS IS. IF YOU HAVE ANY CELLS THAT DON'T READ VOLTAGE AT THE CONNECTOR JUST APPLY 4V TO WAKE THEM UP. SOME BATTERIES WILL BE RESTING AT 2.8V WHICH IS WHERE THE DISCHARGE CUTOFF IS SET ON THE BMS. 


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