Description
This is the TP4057 charger IC, smaller sibling to the TP4057.
With a maximum charge current of 500mA but a dimunitive SOT23-6 form factor the same size as a single surface mount transistor.
Chinese datasheet can be found here ( https://tinyurl.com/25zwey6n ) if you are familiar with the TP4056 and similar charge ICs then you probably won’t even need to translate this to see how to use it, page 7 has a table of the RProg (Current Setting Resistor) for different desired charge currents, 1.6k gives you the 500mA, and 20k just 50mA.
Obviously that maximum charge current is going to be dependant on you getting the heat away and might not be actually achievable for long real world, when I include Lithium-Ion cells in things I usually like to set the charge current really really low, like about 200mA or even less, the slower the charge the cooler the charge the more full the charge, but of course also the longer the charge.
See all my listings: https://tinyurl.com/26tzbx6d
Details
Shipping & pick-up options
| Destination & description | Price | |
|---|---|---|
| Nationwide 1-2 days, Express Urban | $5.70 | |
| Nationwide 2-4 days, Rural | $11.70 | |
| Nationwide 5-8 days, Economy | $3.60 | |
| Combine with another item you've paid shipping on | $0.00 | |
| Shipping more than one item | No extra charge | |
Estimated delivery times in business days
Seller does not allow pick-ups
Payment Options
Pay instantly by card and Ping balance.
Four fortnightly interest-free payments.
Questions & Answers (4)
ECONOMY SHIPPING: This item has an Economy Shipping option. This means an UNTRACKED LETTER POST. If you plan to combine items into this parcel you need to choose Express Urban or Rural we can not combine items into Economy! Only very tiny items can be sent Economy they all have to fit in a flat envelope 10mm thick! Seller comment Monday, 18 May 2026 FAQs: All stock is in Christchurch. Express Urban and Rural Standard is with Courier Post (NZ Post Courier), PO Box welcome. Pickup is not possible sorry. Tracking and GST Invoice links are emailed when shipped - CHECK YOUR SPAM. Combined shipping means you pay shipping on one item, and choose "Combine with another" on the rest. Seller comment Monday, 18 May 2026 HOW TO SAVE WITH COMBINED SHIPPING: Use the Trade Me cart or purchase each separately - choose Urban or Rural shipping option (not Economy) on one item, and choose "Combine with another" on the rest - NO LIMIT! Seller comment Monday, 18 May 2026 RURAL DELIVERY: Rural dwellers, if you have a Woolworths or NZ Post nearby did you know you can use a Parcel Collect address with NZ Post so you only have to pay urban shipping? Google NZ Post Parcel Collect to register. Seller comment Monday, 18 May 2026
TP4057 Lithium Ion Single Cell 500mA Charger SOT23-6 IC
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