# Tadiran TLP-93111

**URL:** <https://discuss.blues.com/t/tadiran-tlp-93111/1154>\
**Category:** Uncategorized\
**Created:** [December 26, 2022, 5:53am UTC](https://discuss.blues.com/t/tadiran-tlp-93111/1154 "2022-12-26T05:53:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mikhail5522](https://avatars.discourse-cdn.com/v4/letter/m/b9bd4f/32.png) [@mikhail5522](https://discuss.blues.com/u/mikhail5522)\
**Post date:** [December 26, 2022, 5:53am UTC](https://discuss.blues.com/t/tadiran-tlp-93111/1154/1 "2022-12-26T05:53:04Z")

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![image](https://us1.discourse-cdn.com/flex020/uploads/blues/original/1X/2bc53b6b9161723d4f9fd086df1c2cb1bc8b4b89.jpeg)  
Why does the Tadiran TLP-93111 battery pictured in the blues shop have a JST termination on the end of it? I thought the only form of battery which should go in the LiPo Jst port on a Notecarrier should always be a rechargeable Lithium Polymer type? The TLP-93111 is a Lithium Thionyl Chloride battery and cannot/should not ever be recharged, is the JST termination for use on another port?

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**Author:** ![gwolff](https://avatars.discourse-cdn.com/v4/letter/g/a88e57/32.png) [@gwolff](https://discuss.blues.com/u/gwolff)\
**Post date:** [December 30, 2022, 6:58pm UTC](https://discuss.blues.com/t/tadiran-tlp-93111/1154/2 "2022-12-30T18:58:53Z")

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## Notecarriers A and F (and older A boards)

On the Notecarrier A and F, the V+ connector can be used for other voltage sources.

 ![c55f462c8c339a12e9c49f0b065847eb.png](https://us1.discourse-cdn.com/flex020/uploads/blues/original/1X/7a0aa3e62f4fb6e96502f6124edb212f6ee3c24f.png)

The schematic shows the V+ connects to the VMAIN power bus via a protection diode.

[https://github.com/blues/note-hardware/blob/master/Notecarrier-A/Notecarrier-A%20schematic%20v2.0.pdf](https://github.com/blues/note-hardware/blob/master/Notecarrier-A/Notecarrier-A%20schematic%20v2.0.pdf)

(see page 3)

If you have a board without a JST connector that is labelled V+, you can use the breakout pin labelled V+ instead if it has one.

| _Important:_ |
| --- |
| Check the polarity of the JST connector of the battery. |

There is no standard about which pin on the JST connector is positive or negative, and they can differ between batteries. Be sure the positive from the battery maps to the pin labelled + on the Notecarrier A JST connector.

> [@Power Specifics - Untethered; JST Polarity & Solar Reqs](https://discuss.blues.com/t/power-specifics-untethered-jst-polarity-solar-reqs/66/3):
>
> Hey Eric, great question, we need to get this documented in the Notecarrier-A datasheets. If you look at your battery or solar panel with the key facing up and the holes towards you, the red, positive wire should be on the right. These are safe to use with the Notecarrier.

_To swap polarity:_ you can use a small screwdriver to pop out the pin receptors in the JST connector of the battery and swap the wires so the polarity is the same as that of the Notecarrier.

[![](https://us1.discourse-cdn.com/flex020/uploads/blues/original/1X/a94a3fb2d8bfdaf89415aed6d786f188839eb4ca.jpeg "How to change Micro JST socket polarity?") ](https://www.youtube.com/watch?v=za-azgbZor8)

## Notecarrier B:

On the Notecarrier B, use the pin labelled VMAIN to bypass the LIPO charger connected to VBAT pin and the LIPO JST connector

| _Warning:_ |
| --- |
| Do not use USB and supply power on VMAIN simultaneously. |

The VMAIN pin doesn’t have a protection diode, so don’t connect USB at the same time as the battery without adding a protection diode to prevent current from flowing back to the battery.

[https://github.com/blues/note-hardware/blob/master/Notecarrier-B/v2.1/Notecarrier-B%20schematic%20v2.1.pdf](https://github.com/blues/note-hardware/blob/master/Notecarrier-B/v2.1/Notecarrier-B%20schematic%20v2.1.pdf)

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**Author:** ![ssozonoff](https://avatars.discourse-cdn.com/v4/letter/s/e9c0ed/32.png) [@ssozonoff](https://discuss.blues.com/u/ssozonoff)\
**Post date:** [February 4, 2025, 5:42pm UTC](https://discuss.blues.com/t/tadiran-tlp-93111/1154/3 "2025-02-04T17:42:40Z")

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I just wanted to chime in here and suggest, @RobLauer, that Blues add a mention in the online Shop for the description of this battery that it is not rechargeable and should NOT be plugged into the Lipo port. This would surely avoid some confusion.

> **[High Current Pulse Lithium Battery (3.6V)](https://shop.blues.com/collections/accessories/products/tadiran-lithium-battery)**
>
> This Li-SOCl2 battery from Tadiran is perfect for the high current pulses that the Notecard can experience when in a region that requires the use of GSM networks. We've tested numerous batteries with Notecard-based applications and, with the ability...

Thanks.