diff --git a/lipo.scad b/lipo.scad
new file mode 100644
index 0000000..e74ae58
--- /dev/null
+++ b/lipo.scad
@@ -0,0 +1,69 @@
+// Lego custom li-po battery box
+// (work in progress, not printable and not usable by now)
+// GPLv3, (c) Vitaliy Filippov, 2016
+
+// 30x12x64 place for battery
+$fn = 40;
+
+term();
+top();
+color([0.5, 1, 0.5]) bottom();
+
+module bottom() {
+    union() {
+        difference() {
+            union() {
+                translate([0, -48, -40]) cube(size=[16, 64, 32]);
+                translate([0, -48+12, -6]) rotate([0, 90, 0]) cylinder(r=2, h=16); //rotate([45, 0, 0]) cube(size=[60, 3, 3], center=true);
+                translate([8, -48+12, -8]) cube(size=[16, 3.6, 3], center=true);
+                translate([0, -48+32, -6]) rotate([0, 90, 0]) cylinder(r=2, h=16); //rotate([45, 0, 0]) cube(size=[60, 3, 3], center=true);
+                translate([8, -48+32, -8]) cube(size=[16, 3.6, 3], center=true);
+                translate([0, -48+52, -6]) rotate([0, 90, 0]) cylinder(r=2, h=16); //rotate([45, 0, 0]) cube(size=[60, 3, 3], center=true);
+                translate([8, -48+52, -8]) cube(size=[16, 3.6, 3], center=true);
+            }
+            translate([2, -48+2, -40+4]) cube(size=[12, 60, 60]);
+            translate([1.6, -48+1.6, -40-0.1]) cube(size=[12.8, 60.8, 2+0.1]);
+        }
+        translate([8, -48+8, -40]) cylinder(r=3.2);
+        translate([8, -48+16, -40]) cylinder(r=3.2);
+        translate([8, -48+24, -40]) cylinder(r=3.2);
+        translate([8, -48+32, -40]) cylinder(r=3.2);
+        translate([8, -48+40, -40]) cylinder(r=3.2);
+        translate([8, -48+48, -40]) cylinder(r=3.2);
+        translate([8, -48+56, -40]) cylinder(r=3.2);
+    }
+}
+
+module top()
+{
+    difference() {
+        translate([0, -48, -8]) cube(size=[16, 64, 8]);
+        translate([2, -48+2, -8-0.1]) cube(size=[12, 60, 6+0.1]);
+
+        translate([-1, -48+12, -6]) rotate([0, 90, 0]) cylinder(r=2, h=50); //rotate([45, 0, 0]) cube(size=[60, 3, 3], center=true);
+        translate([-1, -48+12, -8]) cube(size=[60, 3.6, 3], center=true);
+
+        translate([-1, -48+32, -6]) rotate([0, 90, 0]) cylinder(r=2, h=50); //rotate([45, 0, 0]) cube(size=[60, 3, 3], center=true);
+        translate([-1, -48+32, -8]) cube(size=[60, 3.6, 3], center=true);
+
+        translate([-1, -48+52, -6]) rotate([0, 90, 0]) cylinder(r=2, h=50); //rotate([45, 0, 0]) cube(size=[60, 3, 3], center=true);
+        translate([-1, -48+52, -8]) cube(size=[60, 3.6, 3], center=true);
+    }
+}
+
+module term()
+{
+    difference() {
+        union() {
+            translate([4, 1.3, -0.1]) cube(size=[8, 6.8, 2+0.1]);
+            translate([(16-11.2)/2, 1.7, -0.1]) cube(size=[11.2, 6, 2+0.1]);
+            translate([(16-11.2)/2, 1.7+3, -0.1]) scale([(13-11.2)/2/3, 1, 1]) cylinder(r=3, h=2+0.1);
+            translate([16-(16-11.2)/2, 1.7+3, -0.1]) scale([(13-11.2)/2/3, 1, 1]) cylinder(r=3, h=2+0.1);
+            translate([12, 12, 0]) cylinder(r=4.9/2, h=2);
+            translate([4, 12, 0]) cylinder(r=4.9/2, h=2);
+        }
+        translate([(16-10.5)/2, 1.7+1.7, -0.1]) cube(size=[10.5, 3, 2.2]);
+    }
+    color([1, 0, 0]) translate([16-4-3.8-1.8, 6.3, 0]) cube(size=[1.8+3, 1.1, 2.1]);
+    color([0, 0, 0]) translate([4+0.8, 2.4, 0]) cube(size=[1.8+3, 1.1, 2.1]);
+}