12V 10Ah Lithium LiFePO4 Deep Cycle Battery, 3000+ Cycle Rechargeable Lithium Iron Phosphate Battery for Solar, Fish Finder, Power Wheels, Lighting, Off-Grid Applications with 10A BMS

I have owned 2 of these to use in an old fish finder for ice fishing. They cut the weight in half and last for days on the ice. I have the other one away, but then decided I needed another one. Far superior to lead. I used this with my flasher for a 3 day ice fishing trip and did not have to recharge even once. It also seems less affected by the cold when fishing outside then the old lead one did.

The rated 10Ah capacity is delivered. I am able to verify the battery capacity by a battery capacity tester. Mine is actually 10.4Ah at 3.5 A load current. The BMS over charge and over discharge protection also pass the test. The longevity is unknown. Time will tell.

I use this as my primary battery in my glider to power instruments, keep my phone charged, and coms. My longest flight is 5.3 hours, and it still had plenty of voltage left. I have a second battery as backup, and I haven't had to switch during long flights yet. Great value.

I leave a four star for i don't know the lifespan of the battery yet. So far so good. It fits as a battery replacement for its original housing.

I installed this battery on my 4-wheel fat tire recumbent bike and it has performed fine so far. I installed multiple LED's for blinker, brake and tailites with no onboard charging system it last well between required charges. Worth the purchase price so far.