crwdns2933803:05crwdne2933803:0
crwdns2933797:0CChincrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Arthur Shi
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| [* black] Speaking of the protection board: this is a Shenzen Dalishen Technology [http://www.szdlskj.com/product/xinzheng_221.html|DDJ10A9|new_window=true]. | |
| [* icon_reminder] The board in their product photo got a much better soldering job than ours. | |
| - | [* red] The four large components are MOSFETs responsible for charging and discharging, and have pretty skimpy solder joints. |
| + | [* red] The four large components are MOSFETs (GuangDong Mosfet Semiconductor Co., Ltd. [link|https://www.cmosfet.com/goods-1525.html|CMB5972] N-Channel MOSFET) responsible for charging and discharging, and have pretty skimpy solder joints. |
| [* icon_note] So far this is the only sketchiness we’ve seen, although it is a bit concerning. These particular solder joints are going to see a lot of power as the battery is charging and discharging. |