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I splurged and bought two types of LFP batteries (lithium iron phosphate batteries) that are the cheapest on Amazon! Recently, the price of LFP has started to drop obviously, and they are becoming quite a bargain! Is there any problem with performance even at a bargain price? I investigated as much as I could, and will introduce it along with my personal opinion! The LFP battery introduced this time was purchased on Amazon! ・12V 100Ah LFP battery (red type) 28,999 yen (currently on a limited time sale as of 2024/9/24) https://amzn.to/3Zzv1A8 Although it is a bargain, it has been on sale for about two years and I feel that it is quite reliable. It is characterized by a capacity (voltage) indicator on the top!・12V 100Ah LFP battery (green type) 27,999 yen (as of 9/24/2024) https://amzn.to/4eefw5o The price has gone up by another 1,500 yen since the video was shot 😭 About a week ago it was 23,799 yen, which was undoubtedly the cheapest at the time! (I splurged and bought two immediately) The above two are currently shipped by Amazon, so they are relatively safe. There are also other products with extremely large coupon amounts, but there is a risk that the coupon amount will not be refunded if you return the product due to a defect. Previous videos introduced in the video - Made by AmpereTime! Introducing the LFP battery (lithium iron phosphate battery) with the best cost performance! • Made by AmpereTime! The LFP battery (lithium iron phosphate) has the best cost performance... Currently the brand seems to be Li Time. This is also becoming much cheaper! (About 32,000 for 100Ah) ・Shocking! A look at what will happen to the world as lithium iron phosphate (LFP) batteries become more widespread • Shocking! A look at what will happen to the world as lithium iron phosphate (LFP) batteries become more widespread This video mentions the first LFP from three years ago. With the rise in lithium prices in 2023, prices did not fall as much as expected, but recently it feels like they have finally started to fall! How far will they fall? We don't know, but we'll be keeping an eye on them! ・Super convenient for battery management! Introducing a super cheap battery meter (level gauge) with even more enhanced functions! • Super convenient for battery management! A super cheap battery meter (level gauge) with even more enhanced functions... ・What on earth is this? We'll introduce you to a super cheap electronic load that's super convenient for DIY electrical work! • What on earth is this? We'll introduce you to a super cheap electronic load that's super convenient for DIY electrical work! • Unexpectedly high performance! Convenient, easy to measure internal resistance! Introducing an inexpensive battery checker! • Unexpectedly high performance! Convenient, easy to measure internal resistance! Introducing an inexpensive battery checker... In the case of batteries with unusually low internal resistance of less than a few milliohms, like this one, the effect of contact resistance errors becomes too large, so the measured values are only a reference.