Amazon.com: Synergy Digital Power Tool Battery, Compatible with Bosch GSR 10.8 V-LI-2 Power Tool, (Li-ion, 12V, 4000mAh) Ultra High Capacity, Replacement for Bosch BAT412, BAT414, BAT420 Battery : Tools & Home Improvement
12V Max Lithium-Ion Battery (4.0 Ah)
4.0Ah For BOSCH BAT420 BAT411 12V Li-ion Battery BAT 412A GSR GSB GBA 2607336013 | eBay
12V Max Lithium-Ion Battery (4.0 Ah)
6.0Ah For BOSCH BAT420 BAT411 12V Li-ion Battery BAT 412A GSR GSB GBA 2607336013 | eBay
Bosch BAT420 Power Tool Battery, 12 Volt 3.0 Ah | Remy Battery