Estry

Battery for Fitel S121A S121M4 S122A S122C S122M8 S122M12 S123C S123M4 S123M8 S123M12 S153A S177A S178A S178V S123CM8 S123C12 S153V2 S177B S943 S943B

Q: How do I confirm this battery fits my device?

Match your device against the Compatible Model list, or compare the part number printed on your original battery. Still unsure? Email us with your battery details or photos and we will help you confirm.

$127.99 USD

~~$0.00 USD~~ $127.99 USD

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Title 2600mAh

12-Month Warranty30-Day Easy ReturnsShips from US in 48hUN38.3 & ISO9001 Certified

This is a 2600mAh 11.1V Li-ion replacement battery for Fitel S121A, S121M4 and more, compatible with battery part numbers S943, S943B.

Battery Specifications

Type:	Li-ion
Weight:	228.0g
Dimension:	81.3359.3223.55mm
Category:	Equipment, Survey, Test
Voltage:	11.1V
Rate:	28.86Wh

Compatible Brand

Fitel

Compatible Model

S121A
S121M4
S122A
S122C
S122M8
S122M12
S123C
S123M4
S123M8
S123M12
S153A
S177A
S178A
S178V
S123CM8
S123C12
S153V2
S177B

Compatible Battery Part Number

S943
S943B

⚠ Safety Warnings

Do not disassemble, puncture or modify the battery.
Never short-circuit the terminals or expose to heat / fire.
Do not mix with different batteries or chargers.
Recycle used batteries at designated collection points.

Why Choose Estry

✓ Grade A Cells — Premium cells with stable discharge and low self-discharge.

✓ Real Capacity — Capacity tested to match or exceed the original battery.

✓ Strict QC — Every battery passes charging/discharging and safety checks.

UN38.3 tested for safe transport. MSDS available upon request. Manufactured in an ISO9001 certified facility.

FAQ

How do I confirm this battery fits my device?

Match your device against the Compatible Model list above, or compare the part number printed on your original battery. Still unsure? Email us with your battery details or photos and we will help you confirm.

What is the warranty policy?

This battery is covered by a 12-month warranty against manufacturing defects, plus 30-day easy returns for peace of mind.

How fast will my order arrive?

In-stock orders ship from our US warehouse within 48 hours on business days.