{"product_id":"fma-14-4v-4-5ah-rechargeable-li-ion-battery-diy-for-mt-motojet-jm4s1p-4jt-cell","title":"FMA 14.4V 4–5Ah Li-ion Rechargeable Battery for MOTOJET JM4S1P | 21700 4S1P","description":"\u003ch2\u003eFMA 14.4V Li-ion Rechargeable Battery Pack for MOTOJET JM4S1P\u003c\/h2\u003e\n\u003cp\u003eHigh-performance 14.4V lithium-ion battery pack built with premium 21700 cells in a 4S1P configuration. Designed as a direct replacement or DIY upgrade for MOTOJET JM4S1P applications. Available in three cell options: FMA 50E (5000mAh), Samsung 40T (4000mAh), and Samsung 50G (5000mAh). Each pack includes built-in PCM protection for safe and reliable operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ This is a DIY replacement cell pack. Installation requires soldering skills and basic electrical knowledge. Please read the full installation guide below before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Cell Options:\u003c\/strong\u003e FMA 50E 5000mAh \/ Samsung 40T 4000mAh \/ Samsung 50G 5000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in PCM Protection:\u003c\/strong\u003e Overcharge, over-discharge, and short-circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium 21700 Cells:\u003c\/strong\u003e High energy density for extended runtime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S1P Configuration:\u003c\/strong\u003e 4 cells in series for stable 14.4V output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNi-plated Connection Tabs:\u003c\/strong\u003e Pre-welded nickel strips — ready to solder onto original PCB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePVC Heat-Shrink Wrap:\u003c\/strong\u003e Durable cell packaging for protection and insulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand New:\u003c\/strong\u003e Cells from Samsung or FMA, assembled by FMA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e14.4V (4 × 3.6V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16.8V (4 × 4.2V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDischarge Cut-off Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12.0V (4 × 3.0V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLithium-ion (Li-ion)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4S1P (4 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCell Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCell Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21mm (diameter) × 70mm (height)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePack Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21 × 42 × 143mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e∼290g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePCM (overcharge \/ over-discharge \/ short-circuit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eNi-plated tabs (no connector) — solder to original PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCell Package\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePVC Heat-Shrink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompatible Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMOTOJET JM4S1P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCell Option Comparison\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eOption\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCell Model\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFMA 50E\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFMA 21700-50E\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5000mAh\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCost-effective, high capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSamsung 40T\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSamsung INR21700-40T\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4000mAh\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHigh discharge rate, power tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSamsung 50G\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSamsung INR21700-50G\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5000mAh\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMaximum capacity, extended runtime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 14.4V Li-ion Battery Cell Pack (cell option as selected, with PCM, Ni-plated tabs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDIY Skill Requirements\u003c\/h3\u003e\n\u003cp\u003eThis product is an \u003cstrong\u003einternal replacement cell pack\u003c\/strong\u003e intended for DIY battery rebuilding. It is \u003cstrong\u003enot a plug-and-play replacement\u003c\/strong\u003e. Please confirm you have the following skills and tools before ordering:\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRequirement\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSoldering\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAbility to solder Ni-plated tabs to PCB pads cleanly. A temperature-controlled soldering iron (350–400°C) is recommended.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eElectrical Knowledge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUnderstanding of battery polarity (B+\/B−), PCM wiring (P+\/P−), and series cell configuration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMultimeter Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAbility to measure DC voltage to verify pack voltage and individual cell balance.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMechanical Disassembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAbility to safely open and reassemble the MOTOJET battery housing without damaging the casing or PCB.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTools Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSoldering iron, solder wire, multimeter, screwdriver set, plastic pry tools, adhesive (e.g. epoxy or hot glue) for resealing.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSafety Awareness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eKnowledge of Li-ion battery safety: avoid short circuits, work in ventilated area, keep away from flammable materials.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eIf you are not confident with any of the above, we recommend consulting a professional battery repair technician.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eDIY Installation Steps\u003c\/h3\u003e\n\u003cp\u003eThe following steps describe how to replace the internal cell pack in your MOTOJET JM4S1P battery housing:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/motojet-battery-diy-installation-steps.png?v=1775814638\" alt=\"MOTOJET Battery DIY Installation Steps\"\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: monospace; font-size: 13px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; background: #f9f9f9;\"\u003e\u003cstrong\u003eStep 1 — Open the Battery Housing\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; width: 60%;\"\u003eRemove all screws from the MOTOJET battery casing. Use a plastic pry tool to carefully separate the top and bottom shells. Avoid forcing the casing — check for hidden clips or adhesive seams.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; text-align: center; font-size: 12px; color: #555;\"\u003e\n\u003cpre style=\"margin: 0; line-height: 1.6;\"\u003e[┌────────────┐]  ← Top shell\n[│  MOTOJET  │]\n[└────────────┘]  ← Bottom shell\n        ↓ pry open\n\u003c\/pre\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; background: #f9f9f9;\"\u003e\u003cstrong\u003eStep 2 — Remove the Old Cell Pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTake a photo of the original wiring and tab connections before desoldering. Desolder the Ni tabs from the PCB pads (B+, B− and any balance leads if present). Remove the old cell pack from the housing.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; text-align: center; font-size: 12px; color: #555;\"\u003e\n\u003cpre style=\"margin: 0; line-height: 1.6;\"\u003e[PCB] ── B+ ◄── [Old cells]\n      ── B− ◄──\n        ↓ desolder tabs\n\u003c\/pre\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; background: #f9f9f9;\"\u003e\u003cstrong\u003eStep 3 — Solder New Cell Pack to PCB\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePlace the new FMA cell pack into the housing. Solder the Ni-plated tabs to the corresponding PCB pads (B+ to positive pad, B− to negative pad). Ensure joints are clean and secure. Do not overheat — keep iron contact under 3 seconds per joint.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; text-align: center; font-size: 12px; color: #555;\"\u003e\n\u003cpre style=\"margin: 0; line-height: 1.6;\"\u003e[PCB] ── B+ ►── [New FMA pack]\n      ── B− ►──\n   ↑ solder iron ≤ 3s\n\u003c\/pre\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; background: #f9f9f9;\"\u003e\u003cstrong\u003eStep 4 — Test Voltage with Multimeter\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBefore closing the housing, measure the output voltage at the battery terminals (P+ and P− on the PCB output side). Expected reading: \u003cstrong\u003e12.0V–16.8V\u003c\/strong\u003e depending on charge state.\u003cbr\u003e\u003cbr\u003e✅ \u003cstrong\u003eVoltage detected (12–16.8V):\u003c\/strong\u003e Proceed to Step 6.\u003cbr\u003e❌ \u003cstrong\u003eNo voltage \/ 0V reading:\u003c\/strong\u003e The PCM may be in sleep mode — proceed to Step 5 to activate.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; text-align: center; font-size: 12px; color: #555;\"\u003e\n\u003cpre style=\"margin: 0; line-height: 1.6;\"\u003e[Multimeter]\n  (+) ──► P+\n  (−) ──► P−\nExpected: 12.0–16.8V\n\u003c\/pre\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; background: #f9f9f9;\"\u003e\u003cstrong\u003eStep 5 — Activate with Charger (if no voltage detected)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eIf the multimeter reads 0V, the PCM protection circuit may have tripped due to deep discharge during storage. Connect a 4S Li-ion charger to the battery output terminals (P+\/P−) for \u003cstrong\u003e30–60 seconds\u003c\/strong\u003e to wake up the PCM. Re-test voltage with the multimeter. The pack should now show a reading. If still no voltage after activation attempt, contact us.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; text-align: center; font-size: 12px; color: #555;\"\u003e\n\u003cpre style=\"margin: 0; line-height: 1.6;\"\u003e[4S Charger]\n  (+) ──► P+\n  (−) ──► P−\n  ↓ 30–60 sec\n[Re-test with multimeter]\n\u003c\/pre\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"padding: 10px; border: 1px solid #ddd; background: #f9f9f9;\"\u003e\u003cstrong\u003eStep 6 — Reassemble and Seal the Housing\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eOnce voltage is confirmed, carefully tuck all wiring inside the housing. Align the top and bottom shells and press together. Reinstall screws if applicable. Apply adhesive (epoxy or hot glue) along the seam to reseal the casing. Allow adhesive to cure before use.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; text-align: center; font-size: 12px; color: #555;\"\u003e\n\u003cpre style=\"margin: 0; line-height: 1.6;\"\u003e[┌────────────┐]\n[│  New cells │]\n[└────────────┘]\n  ↓ seal with adhesive\n\u003c\/pre\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eImportant Cautions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e⚠️ \u003cstrong\u003eLi-ion only charger required.\u003c\/strong\u003e Use a 4S Li-ion charger (16.8V CC\/CV). Never use Ni-MH, Ni-Cd, or unregulated chargers.\u003c\/li\u003e\n\u003cli\u003e⚠️ Verify polarity (B+\/B−) before soldering. Reverse polarity will damage the PCM permanently.\u003c\/li\u003e\n\u003cli\u003e⚠️ Do not short-circuit the Ni tabs during installation. Insulate exposed tabs immediately after soldering.\u003c\/li\u003e\n\u003cli\u003e⚠️ Do not charge a damaged, swollen, or leaking battery. Discontinue use immediately if abnormalities are detected.\u003c\/li\u003e\n\u003cli\u003e⚠️ Do not expose to water, moisture, or extreme temperatures (charge\/discharge: 0°C–45°C; storage: −20°C–35°C).\u003c\/li\u003e\n\u003cli\u003e⚠️ Keep away from flammable materials during soldering and charging. Work in a well-ventilated area.\u003c\/li\u003e\n\u003cli\u003e⚠️ Keep out of reach of children.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only a 4S Li-ion charger (16.8V max). Do not overcharge or charge unattended for extended periods.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store at 50% charge (≈14.4V) in a cool, dry place (−20°C–35°C). Avoid full charge for long-term storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not short-circuit, puncture, crush, or disassemble. Avoid exposure to water or moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within 0°C–45°C. Do not charge below 0°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of in accordance with local lithium battery \/ electronic waste regulations. Do not incinerate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspection:\u003c\/strong\u003e Inspect before each use. Do not use if the pack is damaged, swollen, or leaking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Transportation Notice\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis product contains lithium-ion cells and is classified as dangerous goods (UN3481) for shipping purposes.\u003c\/li\u003e\n\u003cli\u003eAir transport is subject to IATA regulations. Shipments may require additional documentation and handling time.\u003c\/li\u003e\n\u003cli\u003eAll shipments comply with applicable UN3481 packaging and labeling requirements.\u003c\/li\u003e\n\u003cli\u003eEstimated delivery: 7–20 business days depending on destination and carrier.\u003c\/li\u003e\n\u003cli\u003eBrazil shipments require a valid Tax Number (CPF\/CNPJ). Some remote destinations may take up to 60 days.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"fmabattery","offers":[{"title":"FMA 50E 5000mAh","offer_id":46618814709949,"sku":"FL5000E-21C4S1PH","price":27.79,"currency_code":"USD","in_stock":true},{"title":"Samsung 40T 4000mAh","offer_id":46618814742717,"sku":"FL4000T-21C4S1PH","price":29.59,"currency_code":"USD","in_stock":true},{"title":"Samsung 50G 5000mAh","offer_id":46618814775485,"sku":"FL5000G-21C4S1PH","price":31.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_c028832e-0f6a-4540-ac93-6a9d70cdcb85.jpg?v=1775813768","url":"https:\/\/fmabattery.com\/products\/fma-14-4v-4-5ah-rechargeable-li-ion-battery-diy-for-mt-motojet-jm4s1p-4jt-cell","provider":"fmabattery","version":"1.0","type":"link"}