Lol 顺便贴下自己偷懒小花招把土国便宜borescope 鼓了的锂poly电池扔掉，自己小花招换上了4 x AA 5号电池，完美好用（直接换不行，我想出歪招即直接换、也并联成为一个大电流充电宝自己给自己充电
，就完美解决了。不用费力研究li-poly 的BMS了）：
" If you know me I disliked li-ion batts. After batt gone bad I decided change power to 4xAA. But maybe BMS PCB inside borescope had some hidden witchcraft, simply attach AAs to PCB won't be recognized still reporting 'battery low" f***.
But I have witchcraft for witchcraft. Even don't have time to mess and diag BMS PCB, simply connect AAs as power supply while same time ALSO AS microUsb charging. While borescope reports "batt low" and will auto shut off, connect AAs "charging" to themselves solved everything, now borescope behave as it should.
Holy man this is awkward. Everything should use AA from start also ease compatibility. Also this is when NiCd shines! Because connect AAs charging to themselves are awkward and took losses, if use NiMH this way it won't work, turn on LED and low amp low voltage "signal lost". But NiCd with its cheap enormous amperage power capacity? Zero problem. Plus they're born inate super fast charging, 15min zero to full, don't need complex electronics. Plus they could endure depleted( li-ion power battery will instant drop dead, CID pops, if manual reset risk of fire ), they could even be stored WHILE SHORTED for up to 20yrs. Plus dirt cheap, what not to love( except super low energy storage, and except Cd are toxic and env polluting
) "
唉虽然只是个土国便宜小电器（我 taobao直接买的，但 aliexpress和temu 上好多），但是解决了有无就能发挥很多作用，比如可以拆了火花塞看汽缸里的健康情况。
看看下面是我逞能的！这是我焊接防滚笼后，汽车大梁里面，大梁的内部全部用便宜软管喷砂，喷漆3层。这时候用内窥镜就能看一下喷漆有没有死角要不要加喷，而且不管要不要加喷，心里都无比得意lol
敢问大家平常找修车店，有几家会给你焊接之后，把附近大梁内部也清洁、喷漆的？！那把外边给你喷好保护好就不错了。但是，大梁是有很多开口的不是密封的！！！ 焊接后烧热的一块儿掉磷化掉漆，是非常容易从内里开始速度闪电一样大锈特锈。很多车焊接维修就是焊接后，只在外面喷漆不在里面喷漆，几年就把底盘杀死了。（ LOL当然最应该的是像厂家一样全车的裸底盘进泳池磷化电镀，专业喷漆，但已经出厂后的车再那样保养真的不太可能 ）
最近闲置破车Rona 更换cyls 之前看了里边离合工作仍然正常，这才明白虽然cyls 肯定要换，但主要是tranny 缺了1qt 油，在野地放了几个月可能输入轴还是selector 干住了。加了齿轮油，把车子升起来轮子离地就不会冲出去了，发动后油就自然被齿轮带起来，然后暴力换档了几次，只要滑动起来就立即完美解决了！
