- N-Series
- Battery pack
NB3037HD29
7.2 V smart lithium-ion battery
Specifications (nominal & typical)
Source: datasheet Rev 1.2.1
Electrical
| Voltage | 7.2 V |
|---|---|
| Capacity | 2.8 Ah |
| Energy | 20 Wh |
| Volumetric energy density | 244 Wh per litre |
| Gravimetric energy density | 164 Wh per kg |
| Maximum discharge current | 8 A |
| Power | 40 W |
| Chemistry | Lithium-ion |
| Cells | 2 × 18650 |
| Configuration | 2S1P |
Mechanical
| Dimensions (L × W × H) | 85 × 42 × 23 mm (3.36 × 1.7 × 0.9 in) |
|---|---|
| Weight | 122 g (0.27 lb) |
| Form factor | Rectangular |
| Device cavity | 24mm x 43mm cross-section |
| Ingress protection | None |
Temperature limits
| Discharge (operating) | −30 °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.
 NB3037HD29 This part |  NB2037HD34 Same family |  NB2037QE34 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 | 2.8 Ah | 3.4 Ah (differs) | 3.4 Ah (differs) | 5 Ah (differs) | 5 Ah (differs) |
| Energy | 20 Wh | 24 Wh (differs) | 24 Wh (differs) | 36 Wh (differs) | 36 Wh (differs) |
| Max discharge | 8 A | 4 A (differs) | 4 A (differs) | 8 A | 8 A |
| Power | 40 W | 20 W (differs) | 20 W (differs) | 40 W | 40 W |
| 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 | 164 Wh per kg | 197 Wh per kg (differs) | 197 Wh per kg (differs) | 185 Wh per kg (differs) | 185 Wh per kg (differs) |
| Discharge temperature | −30 °C to +60 °C | −20 °C to +60 °C (differs) | −20 °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 | $111.57 | $103.86 | $106.52 | $130.51 | $133.17 |
This part, NB3037HD29Differs from the NB3037HD29
Documents
Need a STEP model, drawing or test data that is not listed? Contact us.
Application notes
From the current catalog
NB3037HD29 Smart Lithium-Ion Battery: Capable of higher discharge rates and lower temperature operation than NB3037 smart battery packs, the NB3037HD29 battery pack incorporates the standard features that designers and engineers have come to rely on for safety and function, such as SMbus, a pull tab for easy removal and on-pack LCD display for relative SOC indication.
The NB3037 (2S1P) 7.2V lithium ion pack has tested as low as -30C and is ideally designed for use in compact and handheld devices. (Note, in cases of low temperature applications, we strongly recommend testing in your specific application).
With 8A discharge capability, NB3037 batteries are ideally suited as a small hot-swap battery to hold up the device for a short period while the main battery is charged.
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.
- Custom label
- Custom Firmware
- Additional performance options for OEM applications N-series chargers are recommended for these batteries.
Need additional capacity?
Check out our NB4037 smart batteries The NB3037HD29 is our newest model, designed to outperform the previous NB2037ZD25, NB3037HD25 & HD26 models.
Custom options
Make it yours.
The NB3037HD29 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.