MERL
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I like to keep my eye on battery developments particularly regarding budget lithium. I found this 100Ah battery which seems a very nice item.
It's damn cheap, £86.18
It ships from Temu in a couple of days so must be from a UK warehouse so no danger of import duty.
Unusually the lid is removable by several screws around the edge, I've only seen a removable lid on one other battery previously, normally the lids are glued on so the only way to see what's under the hood so to speak is to cut the case and void the warranty. What's significant about a removable lid??? Well manufacturers/sellers are known for being sneaky and if they supply a battery to a you tube reviewer they sometimes supply one that's built to a different spec so when it's torn apart the product appears to be better quality than what you'll get when you actually buy it, you'll never know of course because to check you'll need to break the case open and void the warranty. The fact that SJY are willing to build this battery with a screw on lid shows an unusual level of honesty IMO.
There's a teardown and comprehensive test here
The build isn't to exceptional standards but it's very good for a budget battery, I've seen a lot worse from bigger brands, the BMS balancing circuit worked well, a lot of cheaper batteries fail this test.
The cells were very well matched and delivered over their 100Ah rating.
It's a budget battery so even though it delivered over 200A in the test don't go higher than 75A for long periods and fit an appropriate fuse on the output +ve lead.
The low temp charge cut of sensor appeared slow to react or inoperative, hardly a deal breaker IMO, I personally wouldn't bother with low temp charge cut off anyway as it's largely nonsense.
It's damn cheap, £86.18
It ships from Temu in a couple of days so must be from a UK warehouse so no danger of import duty.
Unusually the lid is removable by several screws around the edge, I've only seen a removable lid on one other battery previously, normally the lids are glued on so the only way to see what's under the hood so to speak is to cut the case and void the warranty. What's significant about a removable lid??? Well manufacturers/sellers are known for being sneaky and if they supply a battery to a you tube reviewer they sometimes supply one that's built to a different spec so when it's torn apart the product appears to be better quality than what you'll get when you actually buy it, you'll never know of course because to check you'll need to break the case open and void the warranty. The fact that SJY are willing to build this battery with a screw on lid shows an unusual level of honesty IMO.
There's a teardown and comprehensive test here
The cells were very well matched and delivered over their 100Ah rating.
It's a budget battery so even though it delivered over 200A in the test don't go higher than 75A for long periods and fit an appropriate fuse on the output +ve lead.
The low temp charge cut of sensor appeared slow to react or inoperative, hardly a deal breaker IMO, I personally wouldn't bother with low temp charge cut off anyway as it's largely nonsense.
