Chargers and Testers

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Otronic Lithium 18650 Battery Charger with USB-C 5V 1A TP4056
This little board is a constant voltage linear charger for single cell Li-Ion batteries. Input via USB-C or + and - holes. <br>The...
Otronic BMS 4S 40A Li-Ion Lithium Battery 18650 Charger Pcb
Battery Management System (BMS) for a 4S battery pack. With this circuit you can safely make a battery pack from 4 series Li-ion/Li-Po batteries (cell...
Otronic Adjustable DC regulated power supply module (0 - 30 V / 2 mA - 3 A) - DIY KIT (self-soldering)
This is a soldering kit to assemble a high-quality stabilized power supply yourself, with which the voltage can be continuously adjusted between 0 V a...
Otronic Power Bank DIY 18650 Lithium Battery Charger JX-887Y
Make your own Power Bank with this JX-887Y PCD 18650 Dual Micro USB 3.7V to 5V 2A Boost Power Bank DIY Dual USB Output. Ing...
Otronic BMS 3S Protection circuit with balancing function
A Battery Management System (BMS) for a 3S battery pack. With this circuit you can safely make a battery pack from 3 series Li-ion/Li-Po batteries (ce...
Otronic 2S BMS charging and protection board for 2x 18650
Do you want to connect 2 18650 batteries in series for an output of 7.2V? To charge and balance them properly, a BMS is required. This 2S BMS is speci...
Otronic 3S Lithium Battery Protection BMS Board For 18650 18550 Li-ion Lipo Battery 11.1V 12.6V 20A
11.1V 12.6V 20A 3S Lithium Battery Protection PCB BMS Board For 18650 18550 Li-ion Lipo Battery Cell Pack This lithium ion battery protection board...
Otronic Lithium 18650 Battery Charger with Micro USB 5V 1A TP4056
This little board is a linear charger with a constant voltage for single-cell Li-Ion batteries. Input via micro USB or + and - holes. <...
Otronic 18650 Battery holder with Charger and 5V Step-up module (USB-C)
This advanced 18650 battery holder, with integrated charger and 5V step up module, is designed for electronics hobbyists and professionals who need re...
Wireless power module 5V 2A (transmitter and receiver)
This wireless power module can be used as a wireless power supply. In combination with a charger module it could be used to wirelessly charge a 18650 ...
Otronic 12V 5A Power Adapter
12V 5A Adapter for example a 12V LED Strip. Please note that images may differ slightly from the adapter print. Including grounded power cord.</p...
Otronic ZB2L3 Battery Capacity Tester 1.2-12V
With this module you can test the capacity of a battery. By connecting a fully charged battery and starting the Ah test, the battery will slowly l...
Otronic USB charging module: DC-DC step-down converter - 6V ~ 24V 12V to 5V 3A
DC-DC USB Buck Converter / Charging Module Max output current 3A, long time use 2.1A, enough use New design, 3 solid st...
Otronic 6S 15A 22V 24V BMS for lithium batteries
This board is ideal for connecting 6 18650 batteries in series and charging them at the same time. Protects the batteries from being discharged too de...
Otronic BMS 4S 30A Protection circuit with balancing function
This BMS (Battery Management System) ensures that when charging 4 batteries (such as the 18650) of 3.7V, all batteries are charged equally. Set...
Otronic 500Ma Mini Solar Lipo Lithium Charger Module CN3065
Solar panel input: 4.4-6VMax charging current: 500MaInterface: 2-pin JST connectors (or PH2.0)Short circuit protectionContinuous charging current...
Otronic 5V Step-Up Power and Charger module for Lithium battery
A compact module to use a Lithium battery of for example 3.7V as a mini Powerbank or power supply for your electronics or robot project....
Otronic 3S lithium charger module with USB-C
Charging module for 3x 3.7V lithium batteries connected in series. USB-C connection and overcharge protection. Easy to connect....
Otronic 2S 18650 Battery Capacity Tester Li-Ion Module
2S 18650 Li-po lithium battery capacity indicator module Color: outline red, display block blue Display part size is 3.1cm x 2cm...
Otronic 1S 18650 Battery Capacity Tester Li-Ion Module
1S 18650 Li-po lithium battery capacity indicator module Color: outline red, display block blue Display part size is 3.1cm x 2cm...
Otronic 18650 Battery holder with Charger and 12V Step-up module (USB-C)
This advanced 18650 battery holder, with integrated charger and 12V step up module, is designed for electronics hobbyists and professionals who need r...
Otronic TP5000 4.2V 3.6V 1A Lithium Battery Charging Module
PCB size: 21.5*14.5*4.2mm; Input voltage: DC 4.5-9V (recommended not to exceed 7V) Output voltage: DC 4.2V/3.6V (s...
Otronic 18650 Battery holder with Charger and 9V Step-up module (USB-C)
This advanced 18650 battery holder, with integrated charger and 9V step up module, is designed for electronics hobbyists and professionals who need re...
Otronic LIPO tester with alarm buzzer 1S to 8S
Lipo alarm to protect against over-discharging of a LIPO battery. As soon as it falls below the set threshold value, this alarm will give a clear sign...