
48V hidden down-tube e-bike battery, Reention EB-AG integrated frame pack, 10.4Ah/14Ah/15Ah (499/672/720Wh), Korea/Japan 18650 cells, 30A BMS, 362.5×74×99mm, 800-1000 cycles. Drop-in for Gobike FORZA JUNTOS, GlareWheel EB-AG & Fafrees FF20 Polar.
The Reention Rhino IR‑5 is a popular aftermarket hidden down‑tube lithium‑ion replacement battery built for integrated‑frame electric bicycles widely sold across USA, Canada, Europe, Australia and New Zealand. Available in 36V and 48V with comprehensive capacity selections from 10.4Ah up to 20Ah. Equipped with built‑in smart BMS multi‑layer safety protection and LED power indicator, this battery is ideal for direct replacement or range upgrade for commuter ebikes, fat‑tire ebikes, hunting ebikes and city step‑through e‑bikes.
⚠️ Important Compatibility Reminder: This is an aftermarket replacement shell battery. Matching outer IR‑5 housing dimension does not guarantee electrical compatibility. Always verify lock‑slot position, connector pinout and controller / BMS communication protocol prior to ordering. Some ebike models adopt identical IR‑5 outer shell but use different internal wiring harness.
GOBIKE series, GlareWheel EB‑AG, Fafrees FF20 Polar are aftermarket‑fit only. Physical shell fit does NOT guarantee plug‑and‑play electrical compatibility. FF20 Polar adopts factory dual‑battery architecture, this battery only replaces main down‑tube battery.
✅ Ride1Up: Portola(Note:700 Series share IR‑5 shell, double‑check internal connector variant)
✅ Rambo Hunting Ebikes: Savage, Venom, Nomad, Rebel, Megatron, Krusader, Pursuit, Hellcat FS, Rooster 3.0
✅ Biktrix: CHALLENGER, Kutty, Swift X 2
✅ Hikobike: RANGLER, VIBE, ENDURO, SCOUT
✅ Hiboy: P7(Confirm old version / C07 new version difference)
✅ Vakole: VT4 Compact
✅ IGo(CA): Discovery, Berri, Atwater, Bonaventure
✅ Snapcycle: R1 Step‑Thru
✅ Escape Pro
✅ Bee Cool: Pathfinder Step‑Thru, Ranger
✅ Beez: Andrena, Apini, Monarch
✅ Bluerev: Miami Vice
✅ Olivenz: E‑Cargo
✅ Hidoes: BN1
✅ Movin: Tempo Max, Pulse
✅ Perraro: Falcon
✅ EMMO: Utron
✅ Fafrees: FF20, FF20 Polar(Dual‑battery system, aftermarket IR‑5 replacement for main down‑tube battery only)
✅ Himiway: Escape, X‑ark, M2 Turbo, Urban Escape
✅ CYCROWN: CycUltra
✅ Denago: Folding 1
✅ Lombardo: Amalfi
✅ INBIKEOU: Raptor Pro
✅ GOBIKE: FORZA, FORZA Mini, JUNTOS
✅ GlareWheel: EB‑AG
| Parameter | Specification |
|---|---|
| Shell Model | Reention Rhino IR‑5 |
| Outer Dimension(L×W×H) | 363 × 74 × 99 mm |
| Voltage Variants | 36V / 48V |
| 36V Capacity Options | 13Ah, 15Ah, 17.5Ah |
| 48V Capacity Options | 10.4Ah, 12Ah, 13Ah, 14Ah, 14.5Ah, 15Ah, 16Ah, 17Ah, 17.5Ah, 20Ah |
| Max 18650 cell capacity | Max 52 cells |
| Max 21700 cell capacity | Max 30 cells |
| Protection System | Built‑in Smart BMS (over‑charge, over‑discharge, short‑circuit, over‑current protection) |
| Power Indicator | 4‑level LED power level display |
| Discharge Port | Standard IR‑5 6‑pin connector |
| Shell Material | High‑strength matte black ABS plastic |
1 × Reention Rhino IR‑5 Ebike Lithium‑ion Battery (Selected Voltage & Capacity Variant) 1 × Printed User Manual
❗ Charger NOT INCLUDED. You need purchase matched voltage‑specific lithium‑ion ebike charger separately.
✅ Standard Rhino IR‑5 Shell Geometry: Exact outer dimension 363×74×99mm, fits factory IR‑5 frame cutout and lock mechanism for integrated down‑tube ebikes.
✅ Wide Voltage & Capacity Range: Multiple Ah choices for direct worn‑out battery replacement or riding‑range upgrade for fat‑tire, hunting and daily commute ebikes.
✅ Smart Built‑in BMS Safety Circuit: Comprehensive charge‑discharge safety safeguards, improve cell stability and overall battery service life for long‑term ebike usage.
✅ Handy LED Power Indicator: Check remaining battery status directly on battery end without powering‑on your e‑bike.
✅ After‑Market Business‑Ready Solution: Well‑suited for ebike repair workshops, DIY ebike rebuilders and wholesale distributors serving North‑American & Oceania ebike aftermarket.
⚠️ This is aftermarket replacement battery, NOT OEM original factory battery for many listed ebike models. Physical shell fit does NOT guarantee electrical plug‑and‑play compatibility. Double‑check lock position, connector pin definition and BMS communication before checkout.
⚠️ Must use matching‑spec lithium‑ion ebike charger; wrong charger will cause permanent battery damage and void implicit warranty.
⚠️ Manual measurement tolerance ±2‑4mm on shell dimension is normal.
⚠️ Slight color deviation may occur due to lighting and screen difference.
⚠️ Fafrees FF20 Polar dual‑battery model: this battery only replaces main down‑tube battery, seat‑tube secondary battery position is not compatible.
⚠️ Once installed / used, return eligibility will be restricted. Please fully confirm compatibility prior purchase.
Perfect spare replacement battery for hunting ebikes, fat tire ebikes, city commuter integrated frame electric bicycles across United States, Canada, EU, Australia and New Zealand.

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We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.
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