This is a generic, equivalent one, 100% compatible. This 18V Replacement Li-ion battery is designed to compatible with AEG L1815R L1820R L1825R L1830R.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 18V
* Battery Capacity: 6000mAh
* Chemistry: Li-ion
* Dimension: 141.00 x 85.20 x 74.50 mm
* Condition: new, 1 Year Warranty!
* It is easy to use, convenient to carry with.
* No memory effect, Integrated microchip prevents overcharging & lengthens battery life.

Compatible Part Numbers:
4931 4131 78, 4931413178, 4932 3521 14, 4932 3521 60, 4932 3526 54, 4932 3526 55, 4932 3998 12, 4932 4301 69, 4932 4301 70, 4932 4309 22A, 4932 4519 13, 4932 4519 14, 4932 4998 12, 4932352114, 4932352160, 4932352654, 4932352655, 4932399812, 4932430169, 4932430170, 4932430922A, 4932451913, 4932451914, 4932499812, L 1815 R, L 1820R, L 1825R, L 1830 R, L 1830R, L 1840 R, L 1850R, L 1860R, L1815R, L1820R, L1825R, L1830R, L1840R, L1850R, L1860R, R840087

Compatible with the following AEG Power Tools models:

AEG
BUS18NC, BUS18LI, BUS 18LI, BUS 18 LI, BST18XLI, BST 18XLI, BST 18X LI, BSS18CLI, BSS 18CLI, BSS 18C LI, BSB18STX-R, BSB18LI, BSB18GNC142C, BSB18GLI, BSB18G2, BSB 18STX-R, BSB 18LI, BSB 18GLI, BSB 18G2, BSB 18 STX-R, BSB 18 LI, BSB 18 G LI, BS18GLI, BS18CLI, BS 18GLI, BS 18CLI, BS 18C LI, BS 18 G LI, BMS18CLI, BMS 18CLI, BMS 18C LI, BKS18LI, BKS 18LI, BKS 18 LI, BHO18LI, BHO 18LI, BHO 18 LI, BEWS18-115X, BEWS18, BEWS 18-115X

NOTE:
1.The battery must be FULLY charged before first use.
2. The battery is stored in a cool and dry place.
3. Do not Separation, extrusion, and impact.
4. Do not put battery into water and fire.
5. Keep away from children.