3.7 Volt Rechargeable Battery in a Flat Lithium Polymer Pack with JST Type PH 2.0 Plug for RAK Projects

This 3.7 volt rechargeable battery provides a flat lithium polymer power pack for compatible RAK electronics projects. Its JST Type PH 2.0 plug makes connector size an important part of choosing a battery, alongside the space available in your enclosure.

Select the capacity that suits your build: 3000 mAh, 4000 mAh or 8000 mAh. Each capacity has different dimensions, so check the battery compartment before ordering. Before connecting, confirm that the red and black wire positions match your board's polarity; connector fit alone does not establish compatibility.

California Proposition 65 warning: Cancer and Reproductive Harm.

Features

• Flat lithium polymer construction for electronics builds with a battery compartment.
• 3.7 V nominal voltage across the capacity variants.
• JST Type PH 2.0 plug for devices requiring this connector specification.
• Three capacity variants with separately listed dimensions.
• PCM overcharge and undercharge protection.

Specifications

• Battery chemistry: Lithium polymer
• Nominal voltage: 3.7 V
• Capacity variants: 3000 mAh; 4000 mAh; 8000 mAh
• Connector: JST Type PH 2.0 plug
• Protection: PCM overcharge and undercharge protection
• 3000 mAh dimensions: 67 × 36 × 12 mm; tolerance ±2 mm
• 4000 mAh dimensions: 66 × 40 × 11.1 mm; tolerance ±2 mm
• 8000 mAh dimensions: 91.4 × 59.4 × 13.1 mm; tolerance ±2 mm
• Connection requirement: Check the red and black wire order against the device's polarity before connecting

Frequently Asked Questions

Which capacity will fit my RAK project enclosure?

Choose this battery by both capacity and available space: the 3000 mAh pack measures 67 × 36 × 12 mm, the 4000 mAh pack 66 × 40 × 11.1 mm, and the 8000 mAh pack 91.4 × 59.4 × 13.1 mm. Allow for the listed ±2 mm tolerance and check connector and wire clearance.

Can I use this battery with a RAK Meshtastic Starter Kit?

This battery is listed as compatible with the RAK Meshtastic Starter Kit, but you must still check the selected pack's dimensions and confirm that its JST Type PH 2.0 plug has the correct red and black wire order for your board.

Will this plug directly into a LILYGO or Heltec board?

Do not assume this battery will connect directly to a LILYGO or Heltec board. Those boards commonly use a 1.25 connector and opposite polarity, while this pack has a JST Type PH 2.0 plug. Check your exact board before choosing a battery.

Does this battery include overcharge and undercharge protection?

This lithium polymer battery includes PCM overcharge and undercharge protection. Confirm that your device's charging system is suitable for the battery before use.