- N-Series
- Battery pack
NB2037HD34
7.2 V smart lithium-ion battery
Specifications (nominal & typical)
Source: datasheet Rev 1.7
Electrical
| Voltage | 7.2 V |
|---|---|
| Capacity | 3.4 Ah |
| Energy | 24 Wh |
| Volumetric energy density | 292 Wh per litre |
| Gravimetric energy density | 197 Wh per kg |
| Maximum discharge current | 4 A |
| Power | 20 W |
| Chemistry | Lithium-ion |
| Cells | 2 × 18650 |
| Configuration | 2S1P |
Mechanical
| Dimensions (L × W × H) | 85 × 42 × 23 mm (3.36 × 1.65 × 88 in) |
|---|---|
| Weight | 122 g (0.27 lb) |
| Form factor | Rectangular |
| Device cavity | 24mm x 43mm cross-section |
| Ingress protection | None |
Temperature limits
| Discharge (operating) | −20 °C to +60 °C |
|---|---|
| Charge | 0 °C to +45 °C |
| Storage | −20 °C to +60 °C |
Interface
| Mating connector | AMP P/N 5787422-1 or 5787446-1 |
|---|---|
| State-of-charge display | Always on 5-Bar LCD |
Compliance and shipping
| Certifications | EMC Directive, UKCA, Battery Directive, RoHS3, REACH, WEEE, UN 38.3, CE, FCC Part 15 Class B |
|---|---|
| Equivalent lithium content | 2 g |
Confirm every value against the datasheet before you commit a design. Weight and temperature limits are read from the datasheet; energy densities are calculated from it. Charge parameters and the pinout are on the datasheet.
Compatibility
Chargers
| Charger | Bays | Charge | Calibrate | Set SoC 25% | Status |
|---|---|---|---|---|---|
| CH1000 | 1 | Yes | Yes | No | Active |
| CH4000 | 1 | Yes | No | No | Active |
| CH5000 | 1 | Yes | Yes | No | Active |
| CH4040 | 2 | Yes | No | No | Active |
| CH5555 | 4 | Yes | Yes | No | Active |
| CH7000 | 1 | Yes | No | No | Active |
| CH5050 | 2 | Yes | Yes | No | Active |
| CH6555 | 6 | Yes | Yes | No | Active |
| CR12 | 12 | Yes | No | No | Active |
Calibrate runs a full cycle so the fuel gauge reports true capacity. Set SoC 25% parks packs at storage charge for shipping.
Connectors
| Part | What it is |
|---|---|
| 610005 | Straight Connector - TE Part Number: 5787446-1 |
| 610007 | 90° Connector with Right-Hand Key - TE Part Number: 5787422-1 |
| 610018 | 90° Connector with Left-Hand Key - TE Part Number 5787428-1 |
| BL237A | Connector Mounting Circuit Board |
| EB397A | Connector Board with Ideal Diode Circuit. |
Cables
| Part | What it is |
|---|---|
| 629080 | 3' 5-Way cable |
Accessories
Compare with its family
Volume pricing available on every part.
 NB2037HD34 This part |  NB2037QE34 Same family |  NB3037HD29 Same family |  NB4037HD50 Same family |  NB4037QE50 Same family | |
|---|---|---|---|---|---|
| Voltage | 7.2 V | 7.2 V | 7.2 V | 7.2 V | 7.2 V |
| Capacity | 3.4 Ah | 3.4 Ah | 2.8 Ah (differs) | 5 Ah (differs) | 5 Ah (differs) |
| Energy | 24 Wh | 24 Wh | 20 Wh (differs) | 36 Wh (differs) | 36 Wh (differs) |
| Max discharge | 4 A | 4 A | 8 A (differs) | 8 A (differs) | 8 A (differs) |
| Power | 20 W | 20 W | 40 W (differs) | 40 W (differs) | 40 W (differs) |
| Cells | 2 × 18650 | 2 × 18650 | 2 × 18650 | 2 × 21700 (differs) | 2 × 21700 (differs) |
| Configuration | 2S1P | 2S1P | 2S1P | 2S1P | 2S1P |
| Dimensions (mm) | 85 × 42 × 23 | 85 × 42 × 23 | 85 × 42 × 23 | 94.89 × 53.17 × 27.26 (differs) | 94.89 × 53.17 × 27.26 (differs) |
| Volume (mm³) | 82,110 | 82,110 | 82,110 | 137,535 (differs) | 137,535 (differs) |
| Weight | 122 g | 122 g | 122 g | 195 g (differs) | 195 g (differs) |
| Gravimetric density | 197 Wh per kg | 197 Wh per kg | 164 Wh per kg (differs) | 185 Wh per kg (differs) | 185 Wh per kg (differs) |
| Discharge temperature | −20 °C to +60 °C | −20 °C to +60 °C | −30 °C to +60 °C (differs) | −20 °C to +55 °C (differs) | −20 °C to +55 °C (differs) |
| SoC display | Always on 5-Bar LCD | Always on 5-Bar LCD | Always on 5-Bar LCD | Always on 5-Bar LCD | - (differs) |
| Mating connector | AMP P/N 5787422-1 or 5787446-1 | AMP P/N 5787422-1 or 5787446-1 | AMP P/N 5787422-1 or 5787446-1 | AMP P/N 5787422-1 or 5787446-1 | - (differs) |
| Price, qty 1-11 | $103.86 | $106.52 | $111.57 | $130.51 | $133.17 |
This part, NB2037HD34Differs from the NB2037HD34
Documents
Need a STEP model, drawing or test data that is not listed? Contact us.
Application notes
From the current catalog
NB2037HD34 Smart Lithium-Ion Battery: Introduced in 2010, the rechargeable smart Li-Ion battery packs are ideally designed for use in compact and handheld devices.
The NB2037HD34 (2S1P) 7.2V smart lithium ion battery incorporates the standard features that designers and engineers have come to rely on for safety and function while delivering exceptional power and reliability.
Inspired Energy's rechargeable smart lithium-ion battery packs can perform at -20°C for low temperature applications, as the low internal impedance enable the cells to deliver good capacity and discharge current.
Features:
- SMbus
- Pull tab for easy removal
- On-pack LCD Display for Relative SOC Indication Our expertise lies in creating customized battery hybrids that seamlessly integrate standard components to deliver optimal performance.
NB2037HD34 Smart Li-ion battery customization options:
- Custom label
- Custom Firmware
Consider the NB2037QE34 smart battery Looking for something with a higher discharge rate and lower temperature option?
We recommend the NB3037HD29 smart battery Need additional capacity?
Check out our NB4037 smart batteries The NB2037HD34 is our newest model, designed to outperform the previous NB2037HD29 and NB2037HD31.
Custom options
Make it yours.
The NB2037HD34 is a strong starting point. Inspired Energy's real advantage is what we can build from it: custom configurations made in Newberry, Florida, with no third-party manufacturer involved.
Explore custom optionsCustom label
Your brand or OEM labeling, printed in-house on our label line.
Custom firmware
Battery-management parameters tuned to your device's performance requirements.
Custom connector
Proprietary or standard connector options to match your device's interface.
Custom cell configuration
A different cell count, array or chemistry to hit your voltage and runtime targets.
Custom enclosure
New tooling and injection molding for a form factor built around your device.