Buffer power supply - MiniUSB 1A charger for Li-Ion, Li-pol - for TP4056

MiniUSB charger with a maximum power of 1 A for lithium-ion batteries. It has the function of working as a buffer power supply. This chip will come in handy when building additional power sources (e.g. a power bank). It has the protection that prevents the charging voltage from exceeding 4.2 V, and also protects against excessive discharge - 2.5 V (under load). It is important because Li-Ion and Li-Pol batteries may be damaged during overcharging and over-discharge. The principle of operation is very simple: by supplying the 5 V INPUT power supply, the module charges the battery pack, and this voltage appears at the output of the OUT+ and OUT- terminals. When the power is disconnected, the module supplies power from the battery, thanks to which the powered receiver will receive current all the time.

Specification:

• Power 4.5-5.5 V (built-in MiniUSB socket for powering the system) or connectors for soldering power 4.5- 5.5 V marked + -
• The voltage on terminals B+ and B- is max. 4.2 V - one cell (1S)
• Charge voltage 4.2 V +/- 1.5%
• Discharge threshold voltage: 2.5 V +/- 1.5%
• Maximum current 1 A - adjustable (R3)
• Red LED charging indication
• LED blue charge indicator
• Dimensions 19 x 25 x 10 mm
• Protection against overcharging and excessive discharge
• Pins B+, B- are used to connect Li-Ion - Li-Pol cells
• Outputs OUT +, - are used to connect the device powered by the cell

Claim orders from Stores

You can claim your purchased items within 1 - 4 work days after making an order (if product is in local warehouse).

Please wait for an email notification regarding Your order status update.

Vilnius Store address: Vytenio g. 20, LT-03229 Vilnius, Lietuva

Kaunas Store address: Pramonės pr. 4D, LT-51329, Kaunas, Lietuva

Local delivery

Purchased items are delivered locally through Venipak service. Depending on availability of items, orders are processed within 1-3 work days. Orders made until 1AM are shipped the same day.

Local delivery  (1-2 w.d.) price for items of any size is through through courier service is 4.50€ (incl. VAT). 

Local delivery price to Venipak parcel terminals (1-3w.d.) is 2.50€ incl. VAT.

Local delivery price to Omniva parcel terminals (1-3w.d.) is 3.50€ incl. VAT.

Payment on delivery +2.00€ (incl. VAT).

You can pay for the goods at the time of delivery to the courier in cash or by credit card. Payment to Omniva parcel terminals is only possible by bank card.

International delivery pricing through courier service

International shipping prices depend on geographic location:

Latvia - 5.50€ (incl. VAT)

Estonia - 6.50€ (incl. VAT)

other - negiotiated individually.

International delivery pricing to Omniva parcel terminals

Latvia - 6.00€ (incl. VAT)

Estonia - 8.50€ (incl. VAT)

Payments:

We accept payments via PayPal for orders over 20€.

Paid orders of more than 100€ are shipped for free to Baltic countries.

Product availability status meaning:

Vilnius Store In Stock - the product is at the store, Vytenio str. 20 in Vilnius and can be picked up / purchased the same day;

Kaunas Store In Stock - the product is at the store, Pramonės pr. 4D in Kaunas and can be picked up / purchased the same day;

Central Warehouse In Stock - In stock, product will be shipped in a short time 1-2 work days, there is no possibility to pickup on the spot;

1-2 work days - product will be shipped in a short time - 1-2 business days;

1-2 work days – we don’t have selected product in stock. Shipping time is only 1-2 work days;

3-5 work days – we don’t have selected product in stock. Shipping time is between 3-5 work days;

3-7 work days – we don’t have selected product in stock. Shipping time is between 3-7 work days;

Out of Stock – selected product is sold out at the moment, but you can apply for automatic alert by email when product will be in stock.