Maxlithium 9v Rechargeable Batteries
Lithium-Ion 9 Volt Battery Capacity 800Mah 7200M, Cycle Life More Than 300Wh, Triple Layer Batteries, High Temperature Cycling, High Temperature Protection, Lithium Ion 9 Volt Battery Capacity, Quick Charge, 3 Pack With Quick Charger
Results of our analysis:
We analyzed 55,953 reviews for 88 products in the 9V Batteries category.
We then analyzed 37 reviews for this product. Of these, 5 reviews were recent.
100% of reviews were positive.
Final Score:

8.94 out of 10, based on these factors:
Common Questions
Where is the performance sheet on this battery?
800mAh battery has a max discharge Amp of 0.8A and a working temperature of 20C-60C.
Is it possible to charge the batteries when they charged?
I have used this charger in every combination and it seems to be a good system.
There is no description of the warranty of the battery and charger.
I don't know about the warranty but these batteries and charger work well, and we have a device that requires a 9v battery; lasts a lot longer 3-5x of regular 9v battery and of course you can just keep swapping and charging.
Are they really 800 mAh?
If the discharge current is less than 20 and the temperature is less than 25 it's good for Li-ion batteries.
What is the meaning of a red flashing light on the charger?
It goes from solid red to solid blue when done, so try putting the battery next to the one blinking.