Can I use this Samsung tablet battery

[caxtilteca]

I'm working on my first PS2 Portable and I was wondering if I could use this battery from a Samsung tablet

 

[A_s6]

generally it’s unsafe to use batteries like these unless you really know what you’re doing. id say just stick to 18650s or the like

 

[Lightning]

I agree, but if you're set on using flat form factor prismatic cells, check out YDL battery. I bought two of these for my Pi-Boy

YDL 3.7V 1500mAh 803450 Rechargeable Lipo Battery with JST Connector

3.7V 1500mAh 803450 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector Voltage: DC 3.7V; Capacity: 1500mAh Material: Lithium Polymer; Net Weight: 28g Size: 50 x 34 x 8 mm/ 1.97 x 1.34 x 0.31 inch(L*W*T) Connector Type: 2P PH2.0mm Pitch; Cable Length: 5cm / 2" Package...

ydlbattery.com