Li-po is a rechargeable battery of lithium-ion technology in a pouch format. Eh? It’s got loads of different polymers inside aka flexible plastics.
They are used a lot in those personal drones and RC planes that the geeky survivalist and prepper ‘must have’ as a toy.
In the last post Death by Lithium Ion Battery I talked about the fire and explosion risk of these batteries. Only I forgot my modeling days with its not so baby brother the LI-Po power pack.
In real life these lightweight cells are brilliant. Loads of power in a tiny package. Thus are found in RC battery-powered models in all shapes and sizes including the White House Favorite, DRONES.
First thing, heat and these cells is a definite NO NO.
Above 140F / 60C they become unstable. Unstable = Fire Risk
For safety, Lithium Polymer must be CHARGED and STORED in a fire-safe container and never leave them unattended when charging them. When these cells start to fail they don’t hang around. Swell, smoke, and fail can happen in seconds.
Only use “dry” type fire extinguishers on them.
Water/gas or water based foam is not safe.
As per the Li-on, physical damage is bad BUT unlike Li-ion, most Li-Po’s come in soft plastic packs NOT hard metal or hard plastic. thus they are more prone to “crunch” damage.
Thus everything I said about Li-Ion failure applies here.
In short, if it goes wrong, DITCH THE BITCH!
- Never use a Ni-Cad, Ni-Mh battery charger, only use one that can be set specifically for LI-Po’s.
- Be careful when charging. Always make sure your charger is set up correctly to suit the voltage and current settings FOR THAT PACK.
- They will fail if overcharged as per a Li-ion battery.
Being in ‘soft packs’ the clue will be them swelling. Once that starts disconnect fast and ditch even faster!
- Most Li-ion have inbuilt “safety” cut outs, Li-Po as a norm don’t.
- Never store Li-Po batteries fully charged. For long-term storage discharge the cell to about 50% capacity or 3.8 volts.
Lithium. Why, oh, why would anyone be thinking of using such a potentially ‘difficult’ power source.
One where maintaining it off grid has the potential to do so much damage by poor charging techniques, bad storage, or physical damage.
Whoops. I forgot, it’s the preferred power source for all those geeky electronic toys the credit card preppers and survivalists love.