27 Panasonic NCR18650 Cells SALVAGE MEDICAL PACKS (55 CENTS PER CELL)

  • Sale
  • Regular price $15.00


HERE IS A CHEAP WAY TO GET 55 CENT CELLS SALVAGING THEM FROM USED MEDICAL PACKS. THESE ARE PANASONIC NCR18650 CELLS. THESE WILL RANGE FROM 1800-2900MAH WHEN TESTING AND A PERCENTAGE OF THE CELLS WILL GET HOT WHEN CHARGED ABOVE 4.15V. THESE ARE NOTORIOUS FOR GETTING HOT WHEN CHARGED FULLY WHEN THEY AGE SO WE RECOMMEND IF YOU ARE USING THESE TO SET A CHARGE RATE TO AROUND 4V PER CELL. SOME CELLS WILL TEST AMAZING AND FULL CAPACITY AND SOME WILL TEST LIKE CRAP, THAT IS WHY THEY ARE SO CHEAP BUT ULTIMATELY THE PRICE PER KILOWATT YOU'LL BE ABLE TO SALVAGE WILL BE GOOD. THESE PACKS YOU WILL NEED A T-20 SECURITY BIT TO OPEN THEM. THE NICKEL COMES OFF PRETTY EASY, THERE IS NO GLUE, AND THE PINOUT CONNECTOR IS ACTUALLY GOOD FOR GOLD RECOVERY IF YOU ARE INTO THAT. THE 3S BMS MAYBE YOU CAN SALVAGE THAT BUT WE DON'T HAVE ANY DATA ON IT. I JUST KNOW THE BMS IS ROBUST. THE 27 CELL HOLDERS ARE REALLY SOLID AND NICE TO REUSE AS WELL AS THE CASE ITSELF. THE GREEN THIN BOARD YOU SEE IS ACTUALLY A HAND SENSOR. SOME NICE COPPER WIRES CAN ALSO BE SALVAGED FROM THESE. OVERALL THESE ARE PRICED RIGHT, IF YOU CAN GET THE BMS CIRCUIT FIGURED OUT THE BMS ALONE WOULD BE WORTH IT. JUST UNDERSTAND THAT THESE PANASONIC CELLS ARE HIT OR MISS, IF YOU DESIGN YOUR PACK TO ONLY CHARGE UP TO 4V PER CELL YOU WILL BE ABLE TO REUSE THE VAST MAJORITY OF THEM BUT IF YOU DESIGN A PACK THAT CHARGES UP TO 4.2V PER CELL A NICE PERCENTAGE OF CELLS WILL GET HOT DURING THAT HIGH VOLTAGE CHARGE PEAK. 

Brand:

Panasonic
Model: NCR18650
Capacity: 2900mAh Rated
Voltage: 3.60V Nominal
Charging: 4.20V Maximum
1925mA Standard
--- mA Maximum
Discharging: 2.50V Cutoff
580mA Standard
5400mA Maximum
Description: Gray Cell Wrapper
White Insulator Ring
18650 Form Factor