Rechargeable Lithium Battery

Rechargeable Lithium Battery
how can you tell if a rechargeable lithium battery is protected or not?

Some Li-Ion battery include a small electronic circuit that protects the shuts off the battery in the event of overcharging, dropping too low in voltage under load, etc. On a cylindrical battery, it would be about 2mm longer than one without protection.
Is there a way to tell, either through the code of the battery, or through a simple electrical test, whether a given battery is protected or not?

best way if by the brand and model and google

but maybe if you bridge + and - a few seconds it should not get too hot fast and prolonged if its protected

or try and make it explode xD

A look at what is currently available on eBay

Soshine Rechargeable 16340 RCR123 Li-ion Lithium Protected PCB Battery x4
Soshine Rechargeable 16340 RCR123 Li-ion Lithium Protected PCB Battery x4
US $22.99
4 x UltraFire 18650 4.2V Rechargeable Lithium Battery 3800mAh Red for LED Torch
4 x UltraFire 18650 4.2V Rechargeable Lithium Battery 3800mAh Red for LED Torch
US $8.99
USA FAST SHIP 18650 LITHIUM ION BATTERY 3800 mAh TESTED RECHARGEABLE LED Q5 XM-L
USA FAST SHIP 18650 LITHIUM ION BATTERY 3800 mAh TESTED RECHARGEABLE LED Q5 XM-L
US $4.99
20 x UltraFire 18650 4.2V Rechargeable Lithium Battery 3800mAh Red for LED Torch
20 x UltraFire 18650 4.2V Rechargeable Lithium Battery 3800mAh Red for LED Torch
US $41.00
Authentic Bose QuietComfort® 3 rechargeable lithium-ion battery QC3
Authentic Bose QuietComfort® 3 rechargeable lithium-ion battery QC3
US $33.00
2 x Q5 CREE T6 18650 3.7V Rechargeable Lithium Battery 3800mAh + Charger
2 x Q5 CREE T6 18650 3.7V Rechargeable Lithium Battery 3800mAh + Charger
US $4.75
RCR123A Lithium NI-MH AA AAA 18650 14500 Rechargeable Battery Smart Charger
RCR123A Lithium NI-MH AA AAA 18650 14500 Rechargeable Battery Smart Charger
US $8.50
18650 3.7V Rechargeable Lithium Battery 3800mAh + Charger Q5 CREE T6
18650 3.7V Rechargeable Lithium Battery 3800mAh + Charger Q5 CREE T6
US $3.65
New Rechargeable Lithium Battery For Nintendo DS Lite
New Rechargeable Lithium Battery For Nintendo DS Lite
US $5.99
INIX 3000mah 11.1V 11.1 3S lipo li-po battery akku 35C RC Lithium rechargeable
INIX 3000mah 11.1V 11.1 3S lipo li-po battery akku 35C RC Lithium rechargeable
US $20.50
Extended Rechargeable Lithium Li-Ion Battery 3200mAh + Door for Sprint HTC Snap
Extended Rechargeable Lithium Li-Ion Battery 3200mAh + Door for Sprint HTC Snap
US $58.51
4pcs 3.7V 1200mAh 14500 AA Li-ion Lithium Rechargeable Battery + Charger
4pcs 3.7V 1200mAh 14500 AA Li-ion Lithium Rechargeable Battery + Charger
US $8.00
UltraFire wf-501b Flashlight 7.4V Xenon Lamp + Rechargeable Lithium Battery USA
UltraFire wf-501b Flashlight 7.4V Xenon Lamp + Rechargeable Lithium Battery USA
US $10.00
High power! 2 x UltraFire 18650 3.7V Rechargeable Lithium Battery 3600mAh Yellow
High power! 2 x UltraFire 18650 3.7V Rechargeable Lithium Battery 3600mAh Yellow
US $7.00
2pcs Soshine e3 9V 500mAh Lithium-ion Li-ion Rechargeable Battery + Charger Kit
2pcs Soshine e3 9V 500mAh Lithium-ion Li-ion Rechargeable Battery + Charger Kit
US $24.55
2pcs 3.7V 1200mAh 14500 Li-ion Lithium Rechargeable Battery + Charger
2pcs 3.7V 1200mAh 14500 Li-ion Lithium Rechargeable Battery + Charger
US $3.75
Lot of 4: Intermec AB1G Lithium Ion Rechargeable Battery 318-020-001 for CK30 /
Lot of 4: Intermec AB1G Lithium Ion Rechargeable Battery 318-020-001 for CK30 /
US $9.99
4PCS x 3.7V 1200mAh ICR 14500 AA Li-ion Lithium Rechargeable Battery N
4PCS x 3.7V 1200mAh ICR 14500 AA Li-ion Lithium Rechargeable Battery N
US $4.15
Canon LP-E5 Rechargeable Lithium-Ion Battery NEW
Canon LP-E5 Rechargeable Lithium-Ion Battery NEW
US $49.95
Canon LP-E8 Rechargeable Lithium-Ion Battery Pack NEW
Canon LP-E8 Rechargeable Lithium-Ion Battery Pack NEW
US $45.00
CCTV Camera Rechargeable Lithium-ion Battery 12V 9800mA
CCTV Camera Rechargeable Lithium-ion Battery 12V 9800mA
US $47.19
Fujifilm NP-50 Lithium Ion Rechargeable Battery
Fujifilm NP-50 Lithium Ion Rechargeable Battery
US $4.99
4PCS x 18650 3.7V Rechargeable Lithium Battery 3800mAh For FLASHLIGHT Q5 CREE T6
4PCS x 18650 3.7V Rechargeable Lithium Battery 3800mAh For FLASHLIGHT Q5 CREE T6
US $6.50
Cordless Oscillating Multipurpose Tool with 20V Lithium Rechargeable Battery
Cordless Oscillating Multipurpose Tool with 20V Lithium Rechargeable Battery
US $74.00

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