Would that work? Charging Bosch 18V pro/blue/gba battery with garden/green/pba charger : r/Tools
Bosch Home and Garden Battery and Charger Starter Set PBA 18 V (18 V System, 2.5 Ah Battery, Charger, in Carton Packaging) : : DIY & Tools
BATTERY CONVERTER ADAPTER to run Bosch Blue 18V Tools on Makita 18V Battery $39.95 - PicClick AU
Bosch Home and Garden Battery and Charger Starter Set PBA 18 V (18 V System, 2.5 Ah Battery, Charger, in Carton Packaging) : : DIY & Tools
Install Batterybosch 18v 6ah Li-ion Battery Pack - High Capacity 6000mah With Indicator
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Waitley 18V 5.0Ah Rechargebale Replacement Li-ion Battery For Bosch 18Volt Power Tool BAT609 BAT610 BAT618 17618 25618-01 GSB 5A - AliExpress
Install Batterybosch 18v 6ah Li-ion Battery Pack - High Capacity 6000mah With Indicator
Compatible battery & charger
Bosch GBA 18V 5.0AH (0.615.990.M20) 18V Li-ion Battery + Charger Starter Set
Bosch Home and Garden Battery and Charger Starter Set PBA 18 V (18 V System, 2.5 Ah Battery, Charger, in Carton Packaging) : : DIY & Tools
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BS18MT Battery Adapter for Bosch 18V Converted To for Makita 18V Li-ion Battery Converter with USB for Makita 18V Power Tool Use