Built-in protection circuit (PCM) prevents over charging/discharging.
SanDisk Sansa Fuze+ MP3 Player Rechargeable Battery - 3.7V 550mAh LiPo 1S 374237
Pack of 15 9 V Battery Clip Connection Cable, Battery Clip 9 Volt Block Battery with 15 cm Connection Cable, I Type Battery Clip Battery Connection for Ammeter Toys Alarm Systems Electronic Devices
OIUIOME 12 Pack T-Type 9V Battery Clip, 1 Dozen 9V Snap Connector with Hard Plastic Case, 9V Battery Clip T-Type with Wire Leads for Experiment
LampVPath (Pack of 5 22AGW Wires I-Type 9V Battery Connector, 9 Volt Battery Clip, 9V Battery Clip Connector with 22agw Wire and Hard Buckle Plastic Housing
RUNCCI-YUN 10 pcs 18650 3.7V Plastic Battery Holder with Wire（Black）+10 pcs Metal Insulation Clip Battery Alligator Clip Clamps
Poeland 10 Pack 9V Battery Connector, T-Type 9 Volt Battery Clip, 9V Batterys Clip Connector with Wire and Leather Housing
