ZhanPeng
24V 6.0Ah 2PCS Batteries for FLEX 24 Volt Lithium-Ion Battery FX0111 FX0321
24V 6.0Ah 2PCS Batteries for FLEX 24 Volt Lithium-Ion Battery FX0111 FX0321
Couldn't load pickup availability
2PCS 24V 6.0Ah Battery for FLEX — FX0111 FX0321 Replacement
Upgrade from 2.5Ah and 3.5Ah OEM packs with this 2-pack of 24V 6.0Ah (144Wh) replacement batteries for all FLEX 24V cordless tools. Built-in microchip protection, 4-LED fuel gauge, FCC/ROHS/CE certified.
Product Overview
This 2-pack of 24V 6.0Ah batteries for FLEX is a direct upgrade from the OEM FX0111 (2.5Ah) and FX0321 (3.5Ah Stacked Lithium) packs. Each battery delivers 24 volts with 6.0 amp-hours — totaling 144 watt-hours of energy. That is 2.4 times the runtime of the FX0111 and roughly 1.7 times the FX0321.
The batteries are 100 percent cross-compatible with every FLEX 24V cordless tool: hammer drills, impact drivers, circular saws, reciprocating saws, angle grinders, blowers, string trimmers, work lights, and job site radios. They click directly into any FLEX 24V tool and charge on all FLEX 24V chargers — FX0411, FX0421, FX0431, and FX0451 — with no adapter needed.
Each battery includes a built-in microchip that provides overcharge protection, overload protection, and active cell balancing. The 4-LED fuel gauge shows remaining capacity at the press of a button — no need to insert the battery into a tool to check charge level. FCC, ROHS, and CE certified. Two batteries mean zero downtime: one in the tool, one on the charger.
OEM Battery Comparison
See how this 6.0Ah replacement compares to the FLEX OEM batteries it replaces.
| Battery | Type | Capacity | Runtime vs This 6.0Ah |
|---|---|---|---|
| FX0111 | OEM Li-Ion | 2.5Ah / 60Wh | This battery provides 2.4x more runtime |
| FX0321 | OEM Stacked Lithium | 3.5Ah / 84Wh | This battery provides 1.7x more runtime |
| This 6.0Ah | Replacement Li-Ion | 6.0Ah / 144Wh | — |
Compatible FLEX 24V Tools & Chargers
This battery works with every FLEX 24V cordless tool and charger with no adapter or modification.
FLEX 24V Tools
- 1/2" Hammer Drill (FX1271T)
- 1/2" Drill Driver (FX1151)
- 1/4" Impact Driver (FX1351, FX1371A)
- 1/2" Impact Wrench (FX1471)
- 7-1/4" Circular Saw (FX2141)
- Reciprocating Saw (FX2271)
- Angle Grinder
- Blower / String Trimmer
- Work Light (FX5111)
- Job Site Radio
FLEX 24V Chargers
- FX0411 Standard Charger
- FX0421 160W Fast Charger
- FX0431 280W Rapid Charger
- FX0451 Charger
Key Features & Specifications
| Specification | Detail |
|---|---|
| Voltage | 24 Volts (V) |
| Capacity | 6.0Ah (6000mAh) — 144 Watt-hours (Wh) |
| Chemistry | Lithium-Ion (Li-Ion) |
| Package Quantity | 2 Batteries (2-pack) |
| Replaces OEM | FX0111 (2.5Ah), FX0321 (3.5Ah), FX0121 (5.0Ah), FX0221, FX0311 |
| Protection | Built-in microchip — overcharge, overload, cell balancing |
| Fuel Gauge | 4-LED indicator — press button to check remaining charge |
| Compatibility | All FLEX 24V tools and chargers (FX0411/ FX0421/ FX0431/ FX0451) |
| Charge Time (160W) | Approximately 70 minutes to full charge |
| Charge Time (280W) | Approximately 40 minutes to full charge |
| Certifications | FCC, ROHS, CE |
| Condition | Brand New |
Why Choose This 2-Pack 6.0Ah FLEX Battery
2.4x the Runtime of FX0111
Upgrade from 2.5Ah to 6.0Ah. Power through heavy cutting and drilling all day without constant battery swaps. Each pack delivers 144Wh of total energy.
Built-In Microchip Protection
Overcharge, overload, and cell balancing protection built in. The microchip communicates with FLEX chargers for optimized charging and safe operation under heavy load.
4-LED Fuel Gauge
Press the button to see how much charge remains — no guessing and no need to insert the battery into a tool. Know which pack to grab before starting the next task.
100% FLEX 24V Compatible
Clicks directly into every FLEX 24V tool — drills, saws, grinders, blowers, trimmers, lights, radios. Charges on all FLEX 24V chargers. No adapter needed.
2-Pack Zero Downtime
One battery in the tool, one on the charger. When the first runs out, swap and keep working. Two 6.0Ah packs handle all-day job site demands.
FCC / ROHS / CE Certified
Meets international safety and environmental standards. Tested for voltage stability, capacity, and charge-discharge integrity before shipping.
Frequently Asked Questions
Q: How does the 6.0Ah battery compare to FLEX FX0111 and FX0321?
A: The FX0111 is a 2.5Ah OEM battery and the FX0321 is a 3.5Ah Stacked Lithium OEM battery. This 6.0Ah replacement provides 2.4 times the runtime of the FX0111 and approximately 1.7 times the runtime of the FX0321. At 144 watt-hours of total energy per pack, it powers demanding tools such as circular saws and rotary hammers for significantly longer between swaps.
Q: Which FLEX tools and chargers are compatible with this battery?
A: This battery is 100 percent cross-compatible with every FLEX 24V cordless tool, including hammer drills, drill drivers, impact drivers, impact wrenches, circular saws, reciprocating saws, angle grinders, blowers, string trimmers, work lights, and job site radios. It works with all FLEX 24V chargers: FX0411 (standard), FX0421 (160W fast), FX0431 (280W rapid), and FX0451. No adapter or modification needed.
Q: How long does the 6.0Ah battery last on a single charge?
A: Runtime depends on the tool. Light-duty tools such as impact drivers and drills run for hours. Mid-range tools such as circular saws get many cuts per charge. High-demand tools such as rotary hammers drain faster but still get meaningful runtime. Compared to the FX0111 (2.5Ah), this 6.0Ah provides 2.4 times the runtime. The 4-LED fuel gauge lets you check remaining charge at any time.
Q: How long does it take to charge the 6.0Ah FLEX battery?
A: With the FLEX 160W fast charger (FX0421), a full charge takes approximately 70 minutes. Using the FLEX 280W rapid charger (FX0431), the 6.0Ah charges in about 40 minutes. The built-in microchip communicates with the charger to optimize the charging rate and protect cell health.
Q: Which FLEX batteries or tools are NOT compatible?
A: This 24V battery works exclusively with the FLEX 24V tool platform. It is NOT compatible with FLEX 12V or 20V tools, or any other brand's system (DeWalt, Milwaukee, Makita, etc.). It does not replace FLEX Stacked Lithium batteries (FX0331 6.0Ah, FX0341 10.0Ah) in terms of THERMA-TECH Plus features, though it fits the same tools. Always use with a FLEX 24V charger.
Q: What safety protections does this battery include?
A: The battery includes a built-in microchip that provides overcharge protection, overload protection, and cell balancing. A 4-LED fuel gauge shows remaining capacity at the press of a button. The battery is FCC, ROHS, and CE certified for safety. The 2-pack means you always have a charged backup ready.
Q: What is the advantage of buying the 2-pack?
A: A 2-pack keeps one battery in the tool and one on the charger, eliminating downtime on job sites. When the first battery runs out, swap and keep working. For heavy-use professionals running circular saws or rotary hammers all day, two 6.0Ah packs provide continuous power without waiting for a single battery to recharge.
What's Included
- 2 x 24V 6.0Ah (6000mAh) Lithium-Ion Batteries for FLEX 24V Tools
- 1 x User Guide
Summary
| Voltage | 24V |
| Capacity | 6.0Ah / 144Wh per battery |
| Chemistry | Lithium-Ion (Li-Ion) |
| Package | 2-Pack (2 batteries) |
| Replaces OEM | FX0111 (2.5Ah), FX0321 (3.5Ah) |
| Protection | Built-in microchip — overcharge, overload, cell balancing |
| Fuel Gauge | 4-LED indicator |
| Compatibility | All FLEX 24V tools and chargers |
| Certifications | FCC, ROHS, CE |
This is a third-party replacement product sold by ZhanPeng, operated by Changsha Liping Technology Co., Ltd. It is not manufactured by or affiliated with the original device manufacturer. All brand names, model numbers, and trademarks referenced are the property of their respective owners and are used solely to indicate product compatibility. ZhanPeng is an independent retailer and is not sponsored, authorized, or otherwise connected with the original equipment manufacturer.