Shopping Cart

Your cart is empty.

Your cart is empty.

Kastar Battery 2-Pack Replacement for Coast ZX850 Battery with Micro-USB

4.9 (3) Write Review
Free shipping on orders over $29.99

$20.99

$ 9 .99 $9.99

In Stock

1.Size:2-pack


About this item

  • Kastar Magic STL1870 Battery: Can be charged w/ Micro USB with 5Volt 1-2A adapter. i) A USB battery: Directly provides high-speed charging from the wall and on-the-go! Convenience at your finger tips! ii) Easily know the battery status when you charging the battery with LED Lights on the battery. Red color: Charging; Green color: fully charged
  • Specification: Battery Type: Lithium-Ion; Battery Voltage: 3.6V; Battery Capacity: 2600mAh. Battery Dimensions: 0.71" x 2.76" (18 x 70 mm).
  • Safe to Use: Kastar lithium-ion battery cells meets UL1642 & CE safety standards to ensure that your battery pack will be safe to use as a replacement for your unit. Comes with built-in over-charge, over-discharge, over-voltage, over-current, and over-heating protection circuit.
  • Save Money & Time: Do not spend too much time and money on frequent brands with low quality replacement. With our longer run time & protection features, your cycle life will also be improved because you get quality product for your device.
  • Package Includes: 2-Pack Batteries



4.1 out of 5 stars Best Sellers Rank
  • #343 in Cordless Telephone Batteries
 Date First Available January 5, 2023 Manufacturer Kastar

Kastar Battery 2-Pack Replacement for Coast ZX850 Battery with Micro-USB


Ana Salas
Reviewed in the United States on January 12, 2025
Love these rechargeable batteries. Work great with my new lamp I was gifted.
Ned D.
Reviewed in the United States on August 20, 2024
Poor battery life. Used 1st battery and it went dead after 20-25 minutes flashlight usage (my coast battery would get 1-2 hrs runtime depending on light mode). I charged the 2nd battery and same result, poor battery life. Look elsewhere.
Phillip Ryan Phipps
Reviewed in the United States on February 8, 2024
Isn’t usc-c, is micro usb but comes with charger. Bought 2 as replacements and work great so far
Recommended Products
Kastar 2-Pack Battery Replacement for UNIDEN BT-930, BATT930, BT930, ANA9310, ANA9320, Toshi DKT2304-CT, DKT2304CT, Satellite ANA9310, Satellite ANA9320, SANIK 3S2-AAA65H-S-J

$7.99

$ 3 .99 $3.99

4.3
Select Option
SDCP-H325 - Ni-MH, 2.4 Volt, 800 mAh, Ultra Hi-Capacity Battery - Replacement Battery for Uniden BT-1002 and BBTG0609001 Cordless Phone Batteries

$8.45

$ 3 .99 $3.99

4.5
Select Option
Exell Cordless Phone Battery EBCP-107 Replaces HHR-P107, TYPE-35

$19.95

$ 7 .99 $7.99

4.4
Select Option
Leitner Genuine Replacement Battery for LH470, LH475, LH570, LH575, LH670, and LH675 – Works with All Premium Plus Headsets - 2 Pack

$50.00

$ 25 .99 $25.99

4.4
Select Option
Fenzer 2X Home Phone Battery BG0029 for VTech 89-1323-00-00 Model 27910 / AT&T 80-5848-00-00 / Empire CPH-464D SD-7500 SD-7501 / Sanik 3SN-AAA55H-S-J1

$6.99

$ 3 .99 $3.99

4.9
Select Option
Synergy Digital Cordless Phone Batteries, Compatible with Att TL86103 Cordless Phone, (Ni-MH, 2.4V, 750 mAh), Combo-Pack Includes: 2 x SDCP-H334 Batteries

$15.42

$ 6 .99 $6.99

5.0
Select Option
2pcs 1800mAh YL-5J Battery Compatible with Yealink W56HB W59R W56h/p W59VR W60P W76p W77P W79P W56-BATT One Talk IP DECT 3.7V

$22.99

$ 9 .99 $9.99

4.6
Select Option
Synergy Digital Cordless Phone Batteries, Compatible with Toshiba DKT-2404-DECT Cordless Phone, (Ni-MH, 2.4V, 830 mAh), combo-pack includes: 2 x SDCP-H358 Batteries

$20.07

$ 9 .99 $9.99

4.4
Select Option