high power 18650 battery case 21700 battery case

20241224 Update:

Merge the printing configuration of the 21700 battery pack High power into the 18650 battery High power work.

Designed for high-power devices such as DIY violent fans, DIY vacuum cleaners, etc. There are many hardware components required. If you don't have a high power demand, you can use the regular version I designed, and only need to purchase battery poles;

Normal version：https://makerworld.com/zh/models/539919#profileId-467576

为大功率设备设计，如DIY暴力风扇，DIY吸尘器等。需要的五金件较多，如果您没有大功率需求，可以使用我设计的普通版本，仅需要购买电池极片即可；

普通版本：https://makerworld.com/zh/models/539919#profileId-467576

High power 18650 battery box, 21700 battery box design features:

1) The edge design has groove buckles, which can be freely spliced and expanded, and can be freely used in series and parallel; The high-power version recommends horizontal splicing, not vertical splicing:

大功率18650电池盒，21700电池盒设计特色：

1）边缘设计有滑槽卡扣，可以自由拼接扩展，串并联自由发挥；大功率版本推荐横向拼接，不建议纵向拼接：

2) The positive electrode uses M3 * 16mm copper screws and nuts, while the negative electrode uses M3 * 16mm copper screws, tower springs, and nuts to ensure high-power use;

The tower shaped spring increases the compression ratio, making it convenient to retrieve and place batteries;

2）正极采用M3*16mm铜螺丝+螺母，负极采用M3*16mm铜螺丝+塔形弹簧+螺母，保证大功率使用；

塔形弹簧增加压缩比，方便取放电池；

3) It is recommended to use copper wire connectors for series parallel connection and final power supply. If you don't want to buy a copper nose, you can use a wire to directly fix it with an M3 nut.

3）串并联以及最终取电，推荐使用接线铜鼻子。如果不想买铜鼻子，使用导线直接用M3螺母固定也可以。

4) The bottom is designed with screw holes for easy installation and fixation. Screw hole diameter 2.1mm, spacing 50mm, screw head groove diameter 4.5mm, depth 0.8mm; Recommend using M2 countersunk screws for installation; A screw head diameter of 4mm is sufficient;

4）底部设计有螺丝孔，以方便安装固定。螺丝孔直径2.1mm，间距50mm，螺丝头凹槽直径4.5mm，深度0.8mm；推荐使用M2的沉头螺丝安装；螺丝头直径4mm即可；

The following is a list of hardware components:

1) M3 * 16mm copper screw:

如下是五金件清单：

1）M3*16mm铜螺丝：

拼多多链接：https://mobile.yangkeduo.com/goods2.html?ps=Dt3JpUBRfE

2) M3 copper nut:

2）M3铜螺母：

拼多多链接：https://mobile.yangkeduo.com/goods2.html?ps=GKghhSI6Xn

3) 0.6 * 4/8 * 10 tower spring:

3）0.6*4/8*10塔形弹簧：

拼多多链接：https://mobile.yangkeduo.com/goods2.html?ps=rYEK2HzrRS

4) OT2-3 wiring copper nose:

4）OT2-3接线铜鼻子：

这款铜鼻子内径3.2mm，刚好配合M3的螺丝，表面镀锡，不管是直接用钳子夹住线路，还是焊接，都很方便，推荐使用。

拼多多链接：https://mobile.yangkeduo.com/goods2.html?ps=BOXLtRm16Z