18650 9S1P Battery Pack 33.3V 2600mAh Rechargeable Li-ion for Power Tool E-scooter Electric Bike Lawn Mower Industrial Robot | Blue PVC | CE UN38.3 | OEM Factory Direct

$55.00

📦 MOQ: 100 units | OEM & Custom Orders Welcome

SKU: HNF120028 Category: Tag:

🔋 18650 9S1P Battery Pack — 33.3V 2600mAh Rechargeable Li-ion Industrial Battery

Overview

This 18650 9S1P lithium-ion battery pack connects nine Grade A 18650 cells in series, delivering 33.3V / 2600mAh (86.58Wh) in a compact cylindrical blue PVC heat-shrink enclosure. The 33.3V output sits at the high end of the sub-36V power band — making it the ideal solution for high-power cordless tools, light electric bikes, brushless motor platforms, industrial AGV systems, and robotics requiring strong torque and extended runtime just below the standard 36V threshold. CE and UN38.3 certified, full OEM customization available.


9S1P Architecture

[C1]─[C2]─[C3]─[C4]─[C5]─[C6]─[C7]─[C8]─[C9]

3.7V × 9 = 33.3V  nominal
4.2V × 9 = 37.8V  fully charged
3.0V × 9 = 27.0V  BMS cutoff
Capacity  = 2600mAh
Energy    = 33.3V × 2.6Ah = 86.58Wh

Key Specifications

ParameterSpecification
Configuration9S1P
Total Cells9× Grade A 18650
Cell Capacity2600mAh / cell
Nominal Voltage33.3V
Fully Charged37.8V
Capacity2600mAh
Energy86.58Wh
Internal Resistance≤ 250mΩ (pack)
Weight≈ 415g
Recommended Charge0.5C = 1.3A CC/CV
Max Charge Current2.6A (1C)
Continuous Discharge5.2A (2C)
Peak Discharge10.4A (4C)
Discharge Cut-off27.0V (3.0V/cell)
Self-discharge Rate≤ 2% / month
Cycle Life≥ 500 cycles
Capacity Retention≥ 80% at 500 cycles
Operating Temp-20°C ~ 60°C
Storage Temp-10°C ~ 25°C
Storage Voltage34.2V (3.8V/cell)
EnclosureBlue PVC heat-shrink
Balance ConnectorJST-XH 10Pin (9S)
Discharge ConnectorXT60 / custom
Wire GaugeAWG16
CertificationCE / UN38.3 / RoHS

Full Voltage Reference

StateVoltageNote
Fully charged37.8V4.2V × 9
Nominal33.3VStandard rating
Storage34.2V3.8V/cell — optimal
Low warning29.7V3.3V/cell — recharge
BMS cutoff27.0V3.0V/cell — hard stop
Overcharge cutoff38.25V4.25V/cell — BMS

Multi-Capacity SKU Options

SKUCellVoltageCapacityEnergyWeight
9S1P-22002200mAh33.3V2200mAh73.3Wh≈360g
9S1P-24002400mAh33.3V2400mAh79.9Wh≈385g
9S1P-26002600mAh33.3V2600mAh86.6Wh≈415g
9S1P-30003000mAh33.3V3000mAh99.9Wh≈460g
9S1P-34003400mAh33.3V3400mAh113.2Wh≈505g
9S1P-35003500mAh33.3V3500mAh116.6Wh≈520g

⭐ Default: 2600mAh Grade A — best cycle life and cost balance. ⚠️ Note: 9S1P-3000 at 99.9Wh approaches IATA 100Wh threshold — recommend 9S1P-2600 for air freight.


9S1P in the Blue PVC Voltage Series

ConfigVoltageChargedEnergyAir FreightKey Application
6S1P22.2V25.2V57.7Wh✅ Section IIPower tools
7S1P25.9V29.4V67.3Wh✅ Section IIE-scooters
8S1P29.6V33.6V76.9Wh✅ Section IBHigh-power tools
9S1P33.3V37.8V86.6Wh✅ Section IBPre-36V E-bike / tools
10S1P37.0V42.0V96.2Wh✅ Section IBStandard e-bikes
13S1P48.1V54.6V125.1Wh✅ Section IBHigh-voltage e-bikes

⚠️ 9S1P vs 10S1P — How to Choose

Factor9S1P (33.3V)10S1P (37V)
Nominal voltage33.3V37.0V
Fully charged37.8V42.0V
Controller compatibility24V~36V class36V~42V class
Motor pairingLower KV brushlessStandard 36V motors
Air freight✅ 86.6Wh Section IB✅ 96.2Wh Section IB
Best forHigh-power sub-36V toolsStandard 36V e-bikes

📌 Key insight: 9S1P fully charges to 37.8V — overlapping with 36V system territory. Verify your controller’s maximum input voltage tolerance before selecting 9S vs 10S.


Runtime Estimation

DevicePower Draw9S1P-2600 Runtime
High-power cordless tool120W≈ 44 min
Electric lawn mower100W≈ 52 min
Light e-bike (assist)150W≈ 35 min
E-scooter (mid speed)200W≈ 26 min
Industrial robot arm60W≈ 1.5 hours
Light AGV motor80W≈ 1.1 hours
Brushless RC platform50W≈ 1.7 hours

📌 Based on 86.58Wh at 85% efficiency.


BMS Protection — 9-Cell System

ProtectionThresholdFunction
⚡ Overcharge/cell4.25V cutoffPrevents thermal runaway
🔋 Over-discharge/cell2.75V cutoffPreserves cycle life
⚖️ Cell balancingAuto on chargeEqualizes all 9 cells
🔥 Overcurrent>10.4A tripProtects motor & tool circuits
⚠️ Short-circuitInstant cutoffUser & device safety
🌡️ Over-temperature65°C cutoffThermal protection
🔁 Auto-recoveryAfter fault clearedField-friendly

Applications

IndustryTypical Devices
🔧 Power ToolsHigh-power cordless tools, professional grinders, saws
🌿 Garden & OutdoorHeavy-duty lawn mowers, ride-on trimmers
🛵 E-mobilityLight electric bikes, electric scooters (high-power)
🤖 RoboticsIndustrial robot arms, autonomous platforms
🏭 AGV & LogisticsMid-size AGV carts, warehouse automation
🚗 RC & HobbyCompetition RC cars, large FPV platforms
💡 Field PowerHigh-power portable lighting, outdoor broadcast
🏥 MedicalHeavy mobile medical carts, portable imaging

✈️ IATA Air Freight Status

SKUEnergyIATAStatus
9S1P-220073.3WhSection IB✅ Standard DG
9S1P-240079.9WhSection IB✅ Standard DG
9S1P-260086.6WhSection IBRecommended
9S1P-300099.9WhSection IB⚠️ Near 100Wh limit
9S1P-3400113.2WhSection IB✅ Below 160Wh
9S1P-3500116.6WhSection IB✅ Below 160Wh

✈️ 9S1P-2600 at 86.6Wh is the optimal air freight SKU — comfortably within Section IB, well clear of the 100Wh trigger point.


Charging Guide

ModeCurrentTimeNotes
0.5C Standard1.3A≈ 2h✅ Best cycle life
1C Normal2.6A≈ 65min✅ Daily use
2C Fast5.2A≈ 32min⚠️ Occasional only
Storage mode1.3A → 34.2V✅ >3 days storage

⚠️ Must use 37.8V / 9S balance charger with JST-XH 10Pin balance connector.


Default Package Configuration

ItemSpecification
Pack18650 9S1P 33.3V 2600mAh
Cells9× Grade A 18650 2600mAh
BMS✅ 9-cell balancing + full protection
EnclosureBlue PVC heat-shrink
Discharge connectorXT60 (customizable)
Balance connectorJST-XH 10Pin (9S)
Wire gaugeAWG16
Wire length150mm
LabelStandard / OEM white-label
Stock✅ In stock

OEM / Custom Options

OptionDetails
Capacity2200 / 2600 / 3000 / 3400 / 3500mAh
Config upgrade9S2P / 9S3P for higher capacity
Enclosure colorBlue / Black / Red / Yellow / custom
ConnectorXT60 / XT30 / Anderson / Deans / bare wire
Balance leadJST-XH 10Pin (9S) standard
Wire gaugeAWG14 ~ AWG18
Smart BMSUART / fuel gauge IC on request
HousingPVC wrap / ABS hard case / custom
CertificationCE, UN38.3, RoHS, UL1642, IEC62133
BrandingOEM / custom color label
MOQ10 pcs

Certification & Compliance

CertificateScopeStatus
✅ CEEU marketStandard
✅ UN38.3Global freightStandard
✅ RoHSSubstance complianceStandard
✅ MSDSSafety data sheetStandard
📋 IEC 62133Battery safetyOn request
📋 UL 1642US marketOn request

Why Choose Us?

  • 🏭 Factory Direct — own cylindrical pack assembly, zero intermediaries
  • 🔵 Blue PVC series — unified 6S~13S product line identity
  • ✈️ 9S1P-2600 optimal — 86.6Wh, cleanest Section IB air freight option
  • ⚖️ 9-cell BMS balancing — every pack balanced to <5mV delta
  • 🔋 Grade A cells only — 100% capacity verified before assembly
  • 📋 CE + UN38.3 standard — full documentation included
  • 🔬 7-day OEM sample — rapid turnaround for any capacity/connector
  • 🛠️ Full OEM service — spec to certified mass production

📩 Need 33.3V custom pack? Share your motor voltage rating and current draw — we’ll confirm 9S vs 10S compatibility within 24 hours.

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