# 🇬🇧 Usage notes

### <span style="color: rgb(0, 0, 0);">Recharging</span>

<span style="color: rgb(0, 0, 0); white-space: pre-wrap;">Select either the DC port or the USB-C port for charging the power bank, </span><u><span style="color: rgb(0, 0, 0);">not</span></u><span style="color: rgb(0, 0, 0); white-space: pre-wrap;"> both at the same time! For the maximum charging power, see the specifications below. We recommend to charge with approximately 40 W. Charging the battery cells with less power helps to conserve them.</span>

#### Solar charging

<span style="color: rgb(0, 0, 0); white-space: pre-wrap;">The 154 Wh and 307 Wh models also support charging by solar panels. If the panel has a voltage between 12 - 24 V, it can be directly connected to the DC port. The battery management system has a built-in Maximum Power Point Tracking (MPPT) charge controller. Feel free to use the provided barrel connector adapters. </span>

<p class="callout warning">Polarity: Center = positive!</p>

<p class="callout success"><span style="white-space: pre-wrap;">To charge the 99 Wh power bank with solar energy, you need either a solar panel with USB output or a charge controller with proper DC output. </span></p>

### <span style="color: rgb(0, 0, 0); white-space: pre-wrap;">LED Display </span>

<span style="color: rgb(0, 0, 0);">It shows the charging state, the battery capacity and the selected DC port voltage</span>

### <span style="color: rgb(0, 0, 0);">DC port output</span>

<span style="color: rgb(0, 0, 0); white-space: pre-wrap;">Press the button 3 seconds to switch the power output off or on. </span>

<span style="color: rgb(0, 0, 0); white-space: pre-wrap;">By pressing it shortly, toggle through different available voltages: </span>

<table id="bkmrk-99-wh-power-bank154-"><colgroup><col style="width: 360px;"></col><col style="width: 276px;"></col></colgroup><tbody><tr><td>**99 Wh power bank**

</td><td>**154 + 307 Wh power banks**

</td></tr><tr><td>- <span style="white-space: pre-wrap;">Select 12V / 16.5V / 20V / 24 / OFF or EXIT </span>
- <span style="color: rgb(0, 0, 0);">Press button 3s again to confirm</span>
- <span style="color: rgb(0, 0, 0);">Wait a few seconds until the display confirms the output</span>

</td><td>- <span style="color: rgb(0, 0, 0);">Select 12V or 24V</span>
- <span style="color: rgb(0, 0, 0);">just wait until voltage display goes from flashing to constant</span>

</td></tr></tbody></table>

<span style="color: rgb(0, 0, 0);">Finally, connect your device with the proper cable.</span>

### <span style="color: rgb(0, 0, 0); white-space: pre-wrap;">USB outputs </span>

<span style="color: rgb(0, 0, 0);">USB ports can be used simultaneously. Only the USB-C1 port has a separated power control. Using USB-C2 and USB-A together will stop fast charging output.</span>

### <span style="color: rgb(0, 0, 0);">Combinations</span>

<span style="color: rgb(0, 0, 0);">It is possible to use the ports simultaneously. For example one can recharge the power bank via the DC port and attach a USB device to the USB-A port at the same time. However, there are a few exceptions:</span>

**🚫 No combined usage**<span style="color: rgb(0, 0, 0); white-space: pre-wrap;"> of ports is possible in this cases:</span>

- **99 Wh**<span style="color: rgb(0, 0, 0); white-space: pre-wrap;"> - DC + USB-C1: no combination is possible (neither charging nor recharging nor mixed)</span>
- **154 + 307 Wh**<span style="color: rgb(0, 0, 0); white-space: pre-wrap;"> - DC + USB-C1: no simultaneous charging is possible (use only one input at a time for charging)</span>

### Automatic power-off

Some ports will be switched off after a short time to save battery, if too low power is demanded.

<table class="align-center" id="bkmrk-99-wh154-wh307-whdc-"><colgroup><col style="width: 210px;"></col><col style="width: 210px;"></col><col style="width: 210px;"></col><col style="width: 210px;"></col></colgroup><tbody><tr style="height: 10px;"><td class="align-center"></td><td class="align-center">**99 Wh**

</td><td>**154 Wh**

</td><td>**307 Wh**

</td></tr><tr><td>DC / USB-C1

</td><td>&lt; 1.8 W = 150mA @12V

after 5 minutes

</td><td>&lt; 1.5 W = 125mA @12V

after 5 minutes

</td><td>no power-off

</td></tr><tr><td>USB-C2 / USB-A

</td><td>&lt;0.5 W = 100mA @5V

after 1 minute

</td><td colspan="2">&lt;0.15 W = 30mA @5V

after 1 minute

</td></tr></tbody></table>

<p class="callout success">To prevent the power-off function, plug in another device in parallel - for example, charge your smartphone via USB-C2 if you want to keep the USB-A port active.</p>

### LED torch

<span style="color: rgb(0, 0, 0);">To switch the light off and on for 154 Wh + 307 Wh power banks: Press the button twice.</span>