many worldgen mods and gonna try technic now

mods/technic_plus/technic/machines/LV/battery_box.lua

@@ -0,0 +1,20 @@
+-- LV Battery box
+
+minetest.register_craft({
+	output = 'technic:lv_battery_box0',
+	recipe = {
+		{'group:wood',      'group:wood',             'group:wood'},
+		{'technic:battery', 'technic:machine_casing', 'technic:battery'},
+		{'technic:battery', 'technic:lv_cable',       'technic:battery'},
+	}
+})
+
+technic.register_battery_box({
+	tier           = "LV",
+	max_charge     = 40000,
+	charge_rate    = 1000,
+	discharge_rate = 4000,
+	charge_step    = 500,
+	discharge_step = 800,
+})
+