Shentec 3.0Ah 12V Battery kit Compatible with Dremel 8200 8220 8300

Voltage: 12V; Capacity: 3000mAh; Type: Li-ion, Cell Type: LG. Charger Input: AC100-240V, Output: 12V / 1.5A.

About this item

  • Voltage: 12V; Capacity: 3000mAh; Type: Li-ion, Cell Type: LG. Charger Input: AC100-240V, Output: 12V / 1.5A.
  • Compatible with Dremel 8200 8220 rotary tools and Dremel 8300 oscillating tool.
  • 12V Li-ion battery and charger compatible with Dremel 12v B812-03 B812-01 B812-02.
  • Charger compatible with Dremel 12V Li-ion Battery.
Category: Tools & Home ImprovementBattery PacksRanked #99 of 704 in Tools & Home Improvement
8.6Our score
Our verdict

Voltage: 12V; Capacity: 3000mAh; Type: Li-ion, Cell Type: LG. Charger Input: AC100-240V, Output: 12V / 1.5A.

Ranked #99 in Tools & Home Improvement · 4 things we like

Quick answer The Shentec 3.0Ah 12V Battery kit Compatible scores 8.6/10 with us. Amazon owners rate it 4.3 out of 5 across 128 reviews, in line with the 4.4 average of the 456 products we track in Tools & Home Improvement. It was listed at $34.99 on Amazon when we last checked in September 2026.

Voltage: 12V; Capacity: 3000mAh; Type: Li-ion, Cell Type: LG. Charger Input: AC100-240V, Output: 12V / 1.5A. Compatible with Dremel 8200 8220 rotary tools and Dremel 8300 oscillating tool.

12V Li-ion battery and charger compatible with Dremel 12v B812-03 B812-01 B812-02. Charger compatible with Dremel 12V Li-ion Battery. CE, FCC and RoHS certified.

100% compatible with the originals.

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Product information

14 specifications
Output Voltage12 volts
Input Voltage240 volts
Current Rating1.5 A
Amperage3 A
Compatible DevicesSolar
Specification MetRoHS
ColorBlack
BrandShentec
Mfr Part NumberB812-02 battery&charger
Number of Items1
Number of Packs1
Item HighlightB812-03 B812-02 B812-01 Cordless Tools,Lithium-Ion(Battery+Charger)
Unit Count1 Count
Model NumberB812-02

Pros & cons

What we like
  • Voltage: 12V; Capacity: 3000mAh; Type: Li-ion, Cell Type: LG. Charger Input: AC100-240V, Output: 12V / 1.5A.
  • Compatible with Dremel 8200 8220 rotary tools and Dremel 8300 oscillating tool.
  • 12V Li-ion battery and charger compatible with Dremel 12v B812-03 B812-01 B812-02.
  • Charger compatible with Dremel 12V Li-ion Battery.
What could be better

    Shentec 3.0Ah 12V Battery kit Compatible: questions & answers

    Is the Shentec 3.0Ah 12V Battery kit Compatible worth buying?

    Yes, it is one of the stronger picks in its group. We score the Shentec 3.0Ah 12V Battery kit Compatible 8.6 out of 10. Amazon owners rate it 4.3 out of 5 across 128 reviews, in line with the 4.4 average of the 456 products we track in Tools & Home Improvement.

    How much does the Shentec 3.0Ah 12V Battery kit Compatible cost?

    It was listed at $34.99 on Amazon when we last checked in September 2026. Amazon prices change daily, so use the price button on this page to see the current figure.

    What are good alternatives to the Shentec 3.0Ah 12V Battery kit Compatible?

    Similar, well-rated products in our catalog: SKIL PWR CORE 12 Brushless 12V 5-Tool Compact (9.0/10, 4.5 stars from 41 owners); ‎DEWALT ATOMIC 20V MAX Lithium-Ion Cordless Oscillating (9.8/10, 5.0 stars from 40 owners); Bosch GAL12V-20 12V Battery Charger and BAT414 (9.4/10, 4.7 stars from 437 owners).

    Customer reviews

    All reviews on Amazon
    4.3128 global ratings
    5 star57%
    4 star14%
    3 star14%
    2 star0%
    1 star14%

    Breakdown from the 7 most helpful reviews we imported.

    J
    Jeff
    Verified purchaseJune 24, 2026
    Compatible charger and battery works well

    Works well. My Dremel stopped working after just a month or so--but I wasn't sure if the problem was the battery, charger, or Dremel unit. This item helped me trace the problem to the charger. So Shentec charged it's battery quickly and then charged my original Dremel battery--and now I have Dremel operation again. Honestly, it and alternatives all seem a bit expensive--and that stopped me from buying for quite awhile. But--alls well that ends well. Happy with the product.

    J
    Joseph M. Young
    Verified purchaseJanuary 1, 2026
    Awesome product

    Works great with my Dremel

    M
    Max
    Verified purchaseJune 29, 2023
    Battery for the Dremel

    Works fine, but I don’t see any longer run time than the included 2,000mah battery…

    K
    K Harris
    Verified purchaseMarch 1, 2026
    Works for Dremel 8220.

    Worked perfectly with my Dremel 8220.

    T
    tv
    Verified purchaseMarch 11, 2023
    Works great

    I bought a Dremel without the charger at a yard sale for a steal. This charger was able to charge up the original Dremel OEM battery just fine. The included battery also runs strong.Would buy again.

    B
    Brian Preston
    Verified purchaseApril 30, 2026
    Not a fit for Dremel

    Crap, does work will not fit in Dremel properly so will not work it, DO NOT purchase

    J
    Jay
    Verified purchaseMay 19, 2026
    You get the quality you pay for. It’s fair

    Good battery, small battery. It fits just ok in my dremel not an exact fit and has to be forced in a little bit with no click to ensure it’s locked in correctly. The charger works fine and indicates with a red and green light the battery level. You get what you pay for it’s cheaper than buying a whole new charger. It’s super light weight

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.