Document: Technical Datasheet
Version: 3.3
Date: April 2026
Part Number: LB-GEN2-DS-V3.3

GEN 2 Lithium Block™ Module

Air-Cooled Lithium-Ion Battery Solution

Product Overview

The Lithium Block Gen 2 is a robust, wire-bonded lithium-ion module designed for flexibility, scalability, and safety in demanding applications. Available in Energy (M35A) and Power (P28A) cell variants. Power modules are offered in two tiers: Standard with aluminum 5052-H32 collector plates (max 210 A), and Performance with C11000 copper collector plates (max 357 A ampacity), which unlocks the full discharge capability of the Molicel P28A cell.

Key Features

  • Wire-bonded cell interconnects (low heat, compliant, redundant)
  • Cell-level monitoring harness
  • Stackable & scalable architecture
  • Reinforced endplates and strain relief
  • Integrated PCB routing for sensors
  • Designed & assembled in the USA

Standards & Quality

  • UN 38.3 Certified
  • RoHS/REACH-conscious material selection
  • Built to IPC workmanship criteria
  • UL94 V-0 rated resin (thickness-dependent per supplier)
  • Traceability & lot-level testing
  • QMS aligned with ISO 9001

GEN 2 Energy Module Specifications

Parameter 5P6P7P8P9P10P
Energy Capacity [Wh]637588100113125
Charge Capacity [Ah]17.52124.52831.535
Vmax [Vdc]4.24.24.24.24.24.2
Vnom [Vdc]3.63.63.63.63.63.6
Vmin [Vdc]2.52.52.52.52.52.5
Standard Charge Current [A]8.510.211.913.615.317
Max Charge Current [A]8.510.211.913.615.317
Max Discharge Current [A]5060708090100
Approx. Length [mm]119138157177196215
Approx. Mass [g]317374431487544601

GEN 2 Power Module Specifications — Standard

Aluminum 5052-H32 collector plates. Max collector ampacity: 210 A.

Parameter 5P6P7P8P9P10P
Energy Capacity [Wh]5262728293103
Charge Capacity [Ah]1416.819.622.425.228
Vmax [Vdc]4.24.24.24.24.24.2
Vnom [Vdc]3.63.63.63.63.63.6
Vmin [Vdc]2.52.52.52.52.52.5
Standard Charge Current [A]1416.819.622.425.228
Max Charge Current [A]303642485460
Max Discharge Current [A]175210210210210210
Collector PlateAluminum 5052-H32, 0.125 in (3.18 mm), EN Plated
Approx. Length [mm]119138157177196215
Approx. Mass [g]317374431487544601

GEN 2 Power Module Specifications — Performance

C11000 copper collector plates. Max collector ampacity: 357 A. Unlocks the full discharge capability of the Molicel P28A cell (35 A per cell).

Parameter 5P6P7P8P9P10P
Energy Capacity [Wh]5262728293103
Charge Capacity [Ah]1416.819.622.425.228
Vmax [Vdc]4.24.24.24.24.24.2
Vnom [Vdc]3.63.63.63.63.63.6
Vmin [Vdc]2.52.52.52.52.52.5
Standard Charge Current [A]1416.819.622.425.228
Max Charge Current [A]303642485460
Max Discharge Current [A]175210245280315350
Collector PlateC11000 Copper (ETP), 0.125 in (3.18 mm)
Approx. Length [mm]119138157177196215
Approx. Mass [g]340404468532596660

Operating Conditions

Parameter MinimumTypicalMaximumUnits
Operating Temperature (Charge)02360°C
Operating Temperature (Discharge)-402360°C
Storage Temperature-402385°C
Relative Humidity56595%

Mechanical Specifications

Standard Dimensions

Height: 80.75 mm (fixed) | Width: 25.5 mm (fixed)

Length: Variable by parallel count (see tables)

Mounting: M4 threaded inserts on endplates

Enclosure: UL94 V-0 rated polymer (thickness-dependent per supplier) with aluminum reinforcement (options)

Weight: Varies by configuration (see specifications table)

See mechanical drawing in the integration kit for mounting spans and keep-out zones.

Connector Information

Sense Harness: JST GH family (cell voltage & thermistors)

Thermistors: 10 kΩ NTC, β = 3380 K, ±0.5%, max 5 V

Voltage Sense Fuse: 200 mA PTC resettable [PN: 0ZCK0020FF2G]

LV Connector (board): Molex 430450812 | Mating: Molex 43025-0800 | Crimp: 43030-0007

Power Interfaces: Provided via integration kit (busbars/cable set)

LV Connector Pinout

Pin Signal Description
1VSENSE+Voltage Sense +
2THERM_5Thermistor 5
3THERM_4Thermistor 4
4THERM_3Thermistor 3
5VSENSE−Voltage Sense −
6COMCommon return
7THERM_1Thermistor 1
8THERM_2Thermistor 2

Performance Characteristics

Charge Characteristics

  • CC-CV charging profile
  • Standard charge: application-dependent (see table)
  • Fast charge: up to 1C where permitted by thermal limits
  • Charge termination: 4.2 V ± 0.05 V

Discharge Characteristics

  • Continuous current per table (thermal/BMS limited)
  • Peak current: short durations per pack limits
  • Discharge cutoff: 2.5 V
  • Excellent rate capability

Safety Architecture

Cell-Level

  • Current Interrupt Device (CID)
  • Pressure relief vent
  • Thermal shutdown characteristics
  • Sense harness for monitoring

Module-Level

  • Wire-bond redundancy / fuse-like behavior
  • Integrated temperature sensing
  • Mechanical strain relief
  • UL94 V-0 rated resin (thickness-dependent per supplier)

Wire-Bond Fusing Guidance

Indicative single-bond fuse currents (median): Power ≈ 58 A, Energy ≈ 30 A. For programs such as FSAE, size the main pack fuse at ≤ ⅓ of cumulative bond current (e.g., 10P Power → ≤ 193 A). Always verify with BMS limits and system testing.

Typical Applications

Primary

  • EV battery modules
  • Energy storage systems
  • Aerospace & defense
  • Industrial automation
  • Mobile robotics

Integration Benefits

  • Modular scalability
  • Simplified pack assembly
  • Reduced integration time
  • Standardized interfaces
  • Comprehensive documentation

Ordering Information (Energy Modules)

Configuration Part NumberEnergy [Wh]Capacity [Ah]Length [mm]
5P Energy ModuleLBG2-05E6317.5119
6P Energy ModuleLBG2-06E7521138
7P Energy ModuleLBG2-07E8824.5157
8P Energy ModuleLBG2-08E10028177
9P Energy ModuleLBG2-09E11331.5196
10P Energy ModuleLBG2-10E12535215

Ordering Information (Power Modules — Standard)

Configuration Part NumberMax Discharge [A]Capacity [Ah]Length [mm]
5P Power StandardLBG2-05P17514119
6P Power StandardLBG2-06P21016.8138
7P Power StandardLBG2-07P21019.6157
8P Power StandardLBG2-08P21022.4177
9P Power StandardLBG2-09P21025.2196
10P Power StandardLBG2-10P21028215

Ordering Information (Power Modules — Performance)

Configuration Part NumberMax Discharge [A]Capacity [Ah]Length [mm]
5P Power PerformanceLBG2-05P-CU17514119
6P Power PerformanceLBG2-06P-CU21016.8138
7P Power PerformanceLBG2-07P-CU24519.6157
8P Power PerformanceLBG2-08P-CU28022.4177
9P Power PerformanceLBG2-09P-CU31525.2196
10P Power PerformanceLBG2-10P-CU35028215

⚠️ Important Safety Notice

Lithium-ion batteries pose inherent risks including fire, thermal runaway, and electric shock.