Artisan Power Psion/Teklogix Workabout Pro 7525 & 7527: Super Extended Capacity Battery. 4600 mAh Psion/Teklogix Workabout Pro 7525C-G1, 7525S-G1, 7527C-G2/G3, 7527S-G2/G3 Replacement Battery Replaces OEM battery number WA3010 and 1050192 Lithium Ion Rechargeable Battery Pack | 3.7 Volt | 4600 mAh | Cells Made in Japan Longer Lasting: 4600 mAh capacity rating 15% higher than the OEM batteries. Manufactured by Artisan Power, a leader in premium quality replacement battery packs.