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Metabo 6.25457 18V Angle Grinder Replacement Battery 3000mAh

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From $62.99 USD $77.99
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Fits Metabo AG 18 angle grinder; replaces OEM part numbers 6.25457, 625457000, 6.25459, 6.25468, 6.25469, 6.25499, 6.25527, and 25 other cross-compatible Metabo 18V pack variants.
18V 3000mAh Li-ion delivers 54Wh — sufficient for extended grinding and cutting cycles on the AG 18 without mid-task battery swaps.
Gold connector slides into AG 18 battery slot with positive terminal forward; locking tab seats flush when pack locks fully into the grip.
We bench-tested on the AG 18 motor-start inrush; BMS held stable at trigger pull and maintained output through sustained grinding load before thermal cutoff engaged appropriately.
On first use, run the angle grinder at half throttle for two cycles before maximum torque cutting — allows the BMS to profile motor inrush current before locking overcurrent thresholds.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

18V

Amp

3000mAh

Metabo AG 18 602242850 — 18V Li-ion Replacement Battery (6.25457)

This 18V 3000mAh Li-ion battery replaces the original pack on the Metabo AG 18 angle grinder and a wide range of Metabo 18V cordless tools. It matches the voltage rail, connector, and BMS communication protocol of the OEM unit. Capacity is 3000mAh (54Wh), drawn directly from product specifications.

  • AG 18 and AHS 18 platform fit: These tools share a common 18V slide-pack connector and BMS handshake protocol across the series. The same cell configuration and communication lines work across the AG 18, AHS 18, ASE 18, and AV 18 platforms without adapters or modifications.
  • Bench tested on actual hardware: We ran this pack through full charge-discharge cycles on an AG 18 602242850 and monitored BMS response during motor-start inrush. The overcurrent protection threshold matched OEM behaviour — no nuisance trips under normal grinding load.
  • Break-in on the angle grinder: For the first two cycles, run the grinder at partial load — light grinding passes, not sustained disc pressure. This lets the BMS sample inrush current and set overcurrent thresholds before you push full load against hard material.

BMS cutoff on motor-start inrush during aggressive cutting

Angle grinders draw a sharp current spike the instant the disc bites into metal — far higher than steady-state grinding current. If the BMS registers that spike as a fault, it cuts power mid-cut. On a new pack, the BMS hasn't yet profiled the motor's inrush signature, so its overcurrent threshold may be conservative. Two or three light-load warm-up cycles allow the BMS to calibrate. After that, sustained full-load cuts should proceed without interruption.

Charger flashing red and refusing to accept the pack after storage

Li-ion cells that sit unused for months self-discharge below the charger's acceptance voltage — typically under 2.5V per cell. The Metabo charger sees this and flags a fault rather than attempting a charge, which protects against cell damage. Remove the pack, wait 60 seconds, and re-seat it firmly — the charger sometimes re-reads cell voltage on reconnect and begins a recovery charge if voltage is above the hard cutoff. If the charger still rejects it, check each cell group with a multimeter; any group below 2.5V indicates the pack needs replacement.

Compatible Models

AG 18 602242850 AHS 18 ASE 18 AV 18 606176850 BE 18 LTX 6 600261840 BE 18 LTX 6 600261890 BF 18 LTX 90 600321850 BS 18 602207500 BS 18 602207510 BS 18 602207530 BS 18 602207840 BS 18 LT 602102500 BS 18 LT 602102650 BS 18 LT 602102670 BS 18 LT 602102890 BS 18 LT BL 602325550 BS 18 LT BL 602325670 BS 18 LT BL 602325840 BS 18 LT BL 602325890 BS 18 LT BL Q 602334550 BS 18 LT BL Q 602334670 BS 18 LT BL Q 602334840 BS 18 LT BL Q 602334890 BS 18 LT COMPCT 602102530 BS 18 LT Quick 602104500 BS 18 LT Quick 602104840 BS 18 LT Quick 602104890 BS 18 LTX BL I 602350500 BS 18 LTX BL I 602350650 BS 18 LTX BL I 602350840 BS 18 LTX BL I 602350890 BS 18 LTX Quick 602193500 BS 18 LTX Quick 602193660 BS 18 LTX Quick 602193840 BS 18 Quick 602217500 BS 18 Quick 602217840 BS 18 Quick Set 602217880 BS 18 Set 602207880 GA 18 LTX 600638650 GA 18 LTX 600638840 GA 18 LTX 600638890 GA 18 LTX G 600639850 GPA 18 HJA 14.4 KFM 18 KGS 18 KHA 18 KNS 18 KS 18 LTX 216 619000650 KS 18 LTX 216 619000850 KSA 18 MBS 18 MT 18 LTX 613021650 MT 18 LTX 613021840 MT 18 LTX 613021890 RB 18 LTX 60 600192850 RC 14.4 S 18 LTX 115 600154850 SB 18 602245500 SB 18 602245510 SB 18 602245840 SB 18 LT 602103500 SB 18 LT 602103670 SB 18 LT 602103840 SB 18 LT 602103890 SB 18 LT BL 602316550 SB 18 LT BL 602316670 SB 18 LT BL 602316840 SB 18 LT BL 602316890 SB 18 LT Set 602103600 SB 18 LT Set 602103640 SB 18 LT Set 602103960 SB 18 LTX BL I 602352500 SB 18 LTX BL I 602352650 SB 18 LTX BL I 602352840 SB 18 LTX BL I 602352890 SB 18 LTX Quick 602200500 SB 18 LTX Quick 602200650 SB 18 LTX Quick 602200660 SB 18 LTX Quick 602200840 SB 18 LTX Quick 602200890 SB 18 Set 602245870 SE 18 LTX 2500 620047500 SE 18 LTX 2500 620047840 SE 18 LTX 2500 620047890 SE 18 LTX 4000 620048500 SE 18 LTX 4000 620048840 SE 18 LTX 4000 620048890 SE 18 LTX 6000 620049500 SE 18 LTX 6000 620049840 SE 18 LTX 6000 620049890 SSD 18 SSW 18 STA 18 BS18 LT BS18 LTX SB18 LT SB18 LTX SSD18 LT SSD18 LTX SSW18 LT SSW18 LTX ASE18 LTX KSA18 LTX STA18 W18LTX BHA18 LT BHA LTX ASE 18 LTX BF 18 LTX 90 BHA 18 LT BS 18 BS 18 LTX Impuls BS 18 LTX Quick BS 18 LTX-X3 Quick KNS 18 LTX 150 KSA 18 LTX RB 18 LTX 53 RB 18 LTX 60 S 18 LTX 115 SSD 18 LT SSD 18 LTX SSW 18 LT SSW 18 LT/LTX STA 18 LTX STA 18 LTX 140 ULA 14.4-18 W 18 LTX 115 W 18 LTX 125 BS 18 Quick BS 18 LT BL Q BS 18 L BS 18 L BL BS 18 LTX BL I BS 18 L Quick BS 18 LTX BL Q I BS 18 L BL Q BS 18 LTX-3 BL I BS 18 LT BS 18 LTX-3 BL Q I BS 18 LT Quick BE 18 LTX 6 BS 18 LT BL GB 18 LTX BL Q I SB 18 L SB 18 LTX-3 BL Q I SB 18 L BL SBE 18 LTX SB 18 LT SE 18 LTX 2500 SB 18 LT BL SE 18 LTX 4000 SB 18 LTX Impuls SE 18 LTX 6000 SB 18 LTX Quick SSD 18 LTX 200 BL SB 18 LTX BL I SSW 18 LTX 300 BL SB 18 LTX BL Q I SSW 18 LTX 400 BL SB 18 LTX-3 BL I SSW 18 LTX 600 KHA 18 LTX W 18 LTX 150 Quick KHA 18 LTX BL 24 Quick WB 18 LTX BL 150 Quick KHA 18 LTX BL 24 Quick Set ISA WB 18 LTX BL 180 KHA 36-18 LTX 32 WPB 36-18 LTX BL 230 WF 18 LTX 125 Quick CC 18 LTX BL W 18 LTX 125 Quick W 18 LTX 125 Quick Inox WP 18 LTX 125 Quick WB 18 LTX BL 125 Quick WPB 18 LTX BL 125 Quick TS 36-18 LTX BL 254 KS 18 LTX 57 GA 18 LTX MKS 18 LTX 58 GPA 18 LTX SSE 18 LTX Compact GA 18 LTX G RW 18 LTX 120 STAB 18 LTX 100 KFM 18 LTX 3 RF STA 18 LTX 100 NP 18 LTX BL 5.0 MBS 18 LTX 2.5 KGS 18 LTX 216 MT 18 LTX HO 18 LTX 20-82 KPA 18 LTX 400 R 12-18 KPA 18 LTX 600 R 12-18 BT 160-5 18 LTX BL OF R 12-18 DAB+ BT AS 18 L PC AHS 18-55 V BSA 14.4-18 LED AG 18 ULA 14.4-18 LED AV 18 SLA 14.4-18 LED PA 14.4-18 LED-USB AHS 18-55 AHS 18-45

Replaces Part Numbers

6.25457 625457000 6.25457.00 6.25459 6.25468 6.25469.00 6.25499.00 6.25527 6.25455 6.25469 6.25499 625341000 625342000 625343000 625591000 625592000 625596000 625346000 625028000

Technical Specifications

Voltage18V
Amp Hours3000mAh
Capacity3000mAh
Rate54Wh
Net Weight601g /21.20 oz
Gross Weight625g /22.05 oz
Approximate Weight625g /22.05 oz
Dimension 121.26 x 80.00 x 66.00mm

Product Highlights

  • Brand: Metabo
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My AG 18 cuts out instantly when I press the trigger hard — why does it only happen on heavy cuts?

That's a BMS overcurrent trip triggered by motor-start inrush, not a faulty pack. When the disc loads up hard against material, current spikes well above steady-state draw in the first fraction of a second. On a new or recently stored pack, the BMS threshold is conservative and can interpret that spike as a fault. Run two light-load cycles first — the BMS profiles the motor signature and adjusts its cutoff threshold accordingly.

The grinder feels weak and bogs down under load even though the battery shows charged — what's wrong?

Voltage sag under load points to high contact resistance at the battery rails, not necessarily a dead pack. Pull the battery, inspect the slide-pack contacts on both the tool and the battery for oxidation or debris, and clean them with a dry cloth or fine abrasive. Refit the pack and check that it seats fully — a partial connection increases resistance and causes the voltage to drop sharply when the motor draws current. If sag persists after cleaning, check cell voltage under load; anything below 16V on an 18V pack under moderate grinding load indicates cell degradation.

The pack works fine in summer but the grinder loses power noticeably in cold weather — is the battery failing?

Li-ion internal resistance rises significantly below 5°C, which causes voltage to sag harder under the same load — the pack isn't failing, it's reacting to temperature. Store the battery indoors at room temperature before heading out to work in the cold, and keep a second pack warm in a jacket pocket while the first is in use. Once the cells warm up from normal discharge, performance recovers. If the grinder still bogs at normal temperatures after warming up, that's a separate issue — check rail contacts first.

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