Pros of Lithium Polymer(pouch cells):

• LiPo’s hold the highest voltage under load of all lithium batteries so they perform well in high amp draw applications

• LiPo batteries come in many different form factors so they can be built to fit lots of applications

• Maintains lower temperatures under high discharge

Cons of Lithium Polymer(pouch cells):

• LiPo’s are more prone to thermal runaway when punctured or damaged

• LiPo batteries provide around half the life cycles of a  Li-Ion

• Can be discharged down to 3v per cell

Pros of Lithium ion(cylindrical cells):

• Li-ion batteries are higher energy density(Wh/kg) which allows for longer runtimes and lighter weight

• Lithium-ion batteries are safer than lithium polymer because of the metal enclosure

• Can be discharged down to 2.5v per cell

Cons of Lithium ion(cylindrical cells):

• In high amp draw applications, they will have lower voltage under load compared to lithium polymer

• They are round cells in specific sizes which can create some limitations to fit in certain applications

• They tend to hold higher temperatures during and especially after performing a higher discharge rate

We hope this gave you a better idea of what is better for your application.

We have make below tips for your easy understanding:

If you are looking for the highest voltage under load(punch or top speed) then choose a LiPo.

If you are looking for the highest capacity for the weight(energy density), choose Li-ion.

If safety is a big concern, then choose Li-ion.

More information on which is better for your application, please contact our battery tech team by clicking here; we would love to help.