{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "rc-lipo-batteries",
 "name": "RC LiPo battery sizes: ROAR 2S hardcase, shorty, saddle, 4S brick; drone 4S / 6S and 3S 2200 packs; connectors",
 "kind": "modern",
 "category": "Electronics",
 "group": "RC & drones",
 "year": null,
 "question": "What size is a 2S hardcase LiPo?",
 "tags": [
  "lipo",
  "battery",
  "rc car",
  "drone",
  "rc plane",
  "hardcase",
  "xt60"
 ],
 "aliases": [
  "2s hardcase lipo dimensions",
  "shorty lipo size",
  "4s 1500 lipo dimensions",
  "rc battery tray 3d print",
  "roar battery size"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 4,
 "url": "https://xemstudio.com/objects/rc-lipo-batteries/",
 "sheet_txt": "https://xemstudio.com/objects/rc-lipo-batteries/sheet.txt",
 "sheet": {
  "basis": "ROAR rule text (as quoted by RC press), maker spec pages (Gens Ace, Spektrum, Traxxas via dealer, Reedy, CNHL, Tattu)",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "ROAR (racing) limits: standard 2S hardcase 139 (+0/−3) × 47 (+0/−2) × 25.1 (+0/−3) mm; saddle packs 25.1 max height; 4S brick 165 × 52 × 52 max. Most bashing packs follow the same envelope.",
   "Shorty 2S: about 94–97 × 47 × 20–24.5. Saddle: about 67 × 47 × 25 per side. Traxxas iD 2S 5000: 137 × 43 × 24.",
   "Drone packs (XT60): 4S 1300 77 × 38.5 × 27; 4S 1550 79 × 39 × 28; 6S 1100 75 × 39.5 × 35; plane 3S 2200 106 × 34 × 24.",
   "Connectors seen: 5 mm / 4 mm bullets (racing), IC5 (Spektrum Smart), Traxxas iD, XT60 (drones and planes), XT90 / EC5 on larger packs. Leave 1 mm a side in trays for the soft case swelling."
  ],
  "table": {
   "columns": [
    "pack",
    "length_mm",
    "width_mm",
    "height_mm",
    "weight_g",
    "connector"
   ],
   "rows": [
    [
     "ROAR 2S hardcase (max)",
     139,
     47,
     25.1,
     null,
     null
    ],
    [
     "Gens Ace Redline 2S 5000 hardcase",
     139,
     47,
     18.5,
     224,
     "5 mm bullet"
    ],
    [
     "Spektrum Smart 2S 5000 hardcase",
     139.7,
     46,
     25.1,
     400,
     "IC5"
    ],
    [
     "Traxxas iD 2S 5000",
     137,
     43,
     24,
     281,
     "Traxxas iD"
    ],
    [
     "Gens Ace Redline 2.0 shorty 2S 5000",
     97,
     47,
     20,
     179,
     "5 mm bullet"
    ],
    [
     "Reedy WolfPack shorty 3800",
     94,
     47,
     24.5,
     207,
     "4 mm"
    ],
    [
     "Reedy saddle 4800 (per side)",
     67,
     47,
     25,
     277,
     "4 mm"
    ],
    [
     "Tattu R-Line V3 4S 1300",
     77,
     38.5,
     27,
     150,
     "XT60"
    ],
    [
     "CNHL 4S 1550 120C",
     79,
     39,
     28,
     166,
     "XT60"
    ],
    [
     "CNHL Black 6S 1100",
     75,
     39.5,
     35,
     211,
     "XT60"
    ],
    [
     "CNHL Black 3S 2200",
     106,
     34,
     24,
     180,
     "XT60"
    ],
    [
     "ROAR 4S brick (max)",
     165,
     52,
     52,
     null,
     null
    ]
   ]
  }
 },
 "sheet_text": "RC LiPo battery sizes: ROAR 2S hardcase, shorty, saddle, 4S brick; drone 4S / 6S and 3S 2200 packs; connectors — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/rc-lipo-batteries/  (CC BY 4.0)\nBasis: ROAR rule text (as quoted by RC press), maker spec pages (Gens Ace, Spektrum, Traxxas via dealer, Reedy, CNHL, Tattu)\nCatalog version: 2026-10-20\n\nSizes: see table below\n- ROAR (racing) limits: standard 2S hardcase 139 (+0/−3) × 47 (+0/−2) × 25.1 (+0/−3) mm; saddle packs 25.1 max height; 4S brick 165 × 52 × 52 max. Most bashing packs follow the same envelope.\n- Shorty 2S: about 94–97 × 47 × 20–24.5. Saddle: about 67 × 47 × 25 per side. Traxxas iD 2S 5000: 137 × 43 × 24.\n- Drone packs (XT60): 4S 1300 77 × 38.5 × 27; 4S 1550 79 × 39 × 28; 6S 1100 75 × 39.5 × 35; plane 3S 2200 106 × 34 × 24.\n- Connectors seen: 5 mm / 4 mm bullets (racing), IC5 (Spektrum Smart), Traxxas iD, XT60 (drones and planes), XT90 / EC5 on larger packs. Leave 1 mm a side in trays for the soft case swelling.\n\npack  length_mm  width_mm  height_mm  weight_g  connector\nROAR 2S hardcase (max)  139  47  25.1  None  None\nGens Ace Redline 2S 5000 hardcase  139  47  18.5  224  5 mm bullet\nSpektrum Smart 2S 5000 hardcase  139.7  46  25.1  400  IC5\nTraxxas iD 2S 5000  137  43  24  281  Traxxas iD\nGens Ace Redline 2.0 shorty 2S 5000  97  47  20  179  5 mm bullet\nReedy WolfPack shorty 3800  94  47  24.5  207  4 mm\nReedy saddle 4800 (per side)  67  47  25  277  4 mm\nTattu R-Line V3 4S 1300  77  38.5  27  150  XT60\nCNHL 4S 1550 120C  79  39  28  166  XT60\nCNHL Black 6S 1100  75  39.5  35  211  XT60\nCNHL Black 3S 2200  106  34  24  180  XT60\nROAR 4S brick (max)  165  52  52  None  None\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- RC Car Action (ROAR rule text): ROAR LiPo size rule — web — Publisher's page; dimensions are facts — https://www.rccaraction.com/?p=204548\n- LiveRC: ROAR saddle pack rule — web — Publisher's page; dimensions are facts — https://www.liverc.com/news/roar-rules-news-saddle-packs-and-sct-tires/\n- Gens Ace: Redline 2S 5000 hardcase — web — Publisher's page; dimensions are facts — https://www.gensace.de/gens-ace-redline-series-5000mah-7-4v-140c-2s1p-hardcase-hv-lipo-battery-pack-with-hardcase-56.html\n- ARRMA (Spektrum spec): Smart 2S 5000 hardcase — web — Publisher's page; dimensions are facts — https://www.arrma-rc.com/fr/product/7.4v-5000mah-2s-50c-smart-hardcase-lipo-battery-ic5/SPMX50002S50H5.html\n- OzRC (Traxxas spec): Traxxas iD 2S 5000 — web — Publisher's page; dimensions are facts — https://ozrc.com.au/products/t-xas-5000mah-7-4v-2-cell-25c-lipo-battery\n- CompetitionX: Reedy WolfPack shorty and saddle — web — Publisher's page; dimensions are facts — https://www.competitionx.com/news-feed/reedy-wolfpack-shorty-saddle-lipo-batteries\n- Rotorama (CNHL spec): CNHL 4S 1550 — web — Publisher's page; dimensions are facts — https://www.rotorama.com/product/cnhl-1550mah-4s-120c\n- Unmanned Tech (CNHL spec): CNHL Black 6S 1100 — web — Publisher's page; dimensions are facts — https://www.unmannedtechshop.co.uk/product/cnhl-black-series-1100mah-22-2v-6s-100c-lipo-battery/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 4 parts): https://xemstudio.com/files/hardware/rc-lipo-batteries/index.json\nAPI: https://xemstudio.com/api/geometry?object=rc-lipo-batteries\n",
 "sources": [
  {
   "publisher": "RC Car Action (ROAR rule text)",
   "title": "ROAR LiPo size rule",
   "url": "https://www.rccaraction.com/?p=204548",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "LiveRC",
   "title": "ROAR saddle pack rule",
   "url": "https://www.liverc.com/news/roar-rules-news-saddle-packs-and-sct-tires/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Gens Ace",
   "title": "Redline 2S 5000 hardcase",
   "url": "https://www.gensace.de/gens-ace-redline-series-5000mah-7-4v-140c-2s1p-hardcase-hv-lipo-battery-pack-with-hardcase-56.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "ARRMA (Spektrum spec)",
   "title": "Smart 2S 5000 hardcase",
   "url": "https://www.arrma-rc.com/fr/product/7.4v-5000mah-2s-50c-smart-hardcase-lipo-battery-ic5/SPMX50002S50H5.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "OzRC (Traxxas spec)",
   "title": "Traxxas iD 2S 5000",
   "url": "https://ozrc.com.au/products/t-xas-5000mah-7-4v-2-cell-25c-lipo-battery",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "CompetitionX",
   "title": "Reedy WolfPack shorty and saddle",
   "url": "https://www.competitionx.com/news-feed/reedy-wolfpack-shorty-saddle-lipo-batteries",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Rotorama (CNHL spec)",
   "title": "CNHL 4S 1550",
   "url": "https://www.rotorama.com/product/cnhl-1550mah-4s-120c",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Unmanned Tech (CNHL spec)",
   "title": "CNHL Black 6S 1100",
   "url": "https://www.unmannedtechshop.co.uk/product/cnhl-black-series-1100mah-22-2v-6s-100c-lipo-battery/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "rc-plane-and-car-motors",
  "fc-esc-stack-mounts",
  "18650-cell"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "What size is a 2S hardcase LiPo?",
   "a": "Up to 139 × 47 × 25.1 mm (ROAR); most standard packs match."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "lipo-2s-hardcase-roar-139x47x25.1",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-2s-hardcase-roar-139x47x25.1.step",
   "stl": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-2s-hardcase-roar-139x47x25.1.stl",
   "note": "2S hardcase LiPo, ROAR maximum 139 × 47 × 25.1"
  },
  {
   "file": "lipo-2s-shorty-97x47x20",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-2s-shorty-97x47x20.step",
   "stl": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-2s-shorty-97x47x20.stl",
   "note": "2S shorty (Gens Ace Redline 2.0) 97 × 47 × 20"
  },
  {
   "file": "lipo-4s-1550-79x39x28",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-4s-1550-79x39x28.step",
   "stl": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-4s-1550-79x39x28.stl",
   "note": "4S 1550 drone pack (CNHL) 79 × 39 × 28"
  },
  {
   "file": "lipo-tray-2s-hardcase",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-tray-2s-hardcase.step",
   "stl": "https://xemstudio.com/files/hardware/rc-lipo-batteries/lipo-tray-2s-hardcase.stl",
   "note": "Tray for a 2S hardcase pack (inside 140 × 48), strap slots"
  }
 ],
 "markdown": "https://xemstudio.com/objects/rc-lipo-batteries/index.md"
}