VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode
VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode – A Simpler Way to Manage Your 2S Batteries
If most of your FPV batteries are 2S, VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode removes a lot of unnecessary work. Connect up to four batteries, choose the charge current and target voltage, and ToothStor handles each battery on a separate channel. There is no parallel board and, with standard XH2.54 3-pin batteries, no need to connect the XT30 power lead. It can also bring charged batteries back to storage voltage after flying.
Clear Control of All Four Batteries
The color LCD keeps the most important information for all four charging channels in one place. You can quickly check cell voltage, charging current and the status of each connected battery without switching between separate menus. Two physical buttons handle the main settings and buzzer control, keeping everyday operation simple when you are charging several 2S packs before or after flying.
Supports JST-XH2.54 and BT3.0 Batteries
Depending on the selected ToothStor version, the charger can work with standard 2S batteries using a JST-XH2.54 balance connector as well as compatible packs with a BT3.0 connector. This makes ToothStor particularly useful for pilots who have several types of small 2S FPV batteries and want to manage them from one compact charger instead of keeping separate charging solutions for each connector.
One Charger for LiPo and LiHV 2S Packs
ToothStor provides dedicated voltage settings for both standard LiPo and LiHV batteries. For LiPo you can select 3.80V/cell for storage or 4.20V/cell for a full charge, while LiHV packs can use 3.85V/cell for storage or 4.35V/cell when fully charged. This means you can use the same charger for different 2S battery types without guessing the correct final voltage.

Flexible 65W Power Input
ToothStor can be powered through USB-C PD, DC input or XT60, so it is easy to adapt the charger to the equipment you already use. A suitable 65W power source makes it practical both on the workbench and in a field charging setup. You can use a USB-C PD power supply at home or connect an appropriate battery through XT60 when mains power is not available.
Active Cooling Keeps Heat Under Control
Charging four batteries and bringing packs down to storage voltage generates heat, so ToothStor uses an integrated cooling fan and ventilation in the housing. Active airflow helps remove heat from the electronics during longer charging and discharging sessions, which is particularly useful when several channels are working at the same time.

VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode Frequently Asked Questions (FAQ)
Yes. The four channels are independent, so the batteries can start at different voltages and can have different capacities. The charging current and target voltage are shared across all four channels, so set a current that is suitable for every connected battery.
No. A normal 2S battery with a 3-pin JST-XH2.54 balance plug is charged directly through the balance connector, so the XT30 power lead stays disconnected.
Yes, as long as they are compatible 2S LiPo or LiHV batteries with the correct balance connector. The maximum charging current is 1.5A per channel, so larger-capacity packs will simply take longer to charge. Oscar Liang also confirmed successful use of this type of charger with larger 2S batteries, noting that charging time increases with capacity.
VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode Specifications
Model | VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode |
Dimensions | 109mm x 56mm x 30mm |
Weight | 142g |
Input Connector | XT60, DC(5.5*2.1mm), USB-C(PD3.0) |
Input Voltage Range | 10V - 26V |
Minimum Input Power
| 65W |
Max Charging Current | 1.5A/port |
Support Battery Connector | XH2.54 3Pin & BT3.0 |
Battery Type | LiHV / LiPo |
Storage Voltage | 3.80V/Cell & 3.85V/Cell |
Max Discharge Current | 0.2A/port |
Balance Current | 0.2A |
VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode Package Includes
- 1x VIFLY ToothStor - 4 Port 2S Balance Charger with Storage Mode
- 1x USB-C Cable
- 1x User Manual
