Part number: Paslode 018882. It's also compatible with the 900507 car adapter.
eBay
6V 7.2V Li-Ion Battery Charger Ni-MH Ni-CD Battery Charger for Paslode 404717 B20544E BCPAS-404717
Aliexpress UK
(For Paslode 404717, B20544E, BCPAS-404717, BCPAS-404717SH. Battery Type: Ni-MH. Battery Capacity:4000mAh / 50 00mAh. Quantity: 1/2/3/4x battery. (͡° ͜ʖ ͡°). excluded.).
eBay
Newest Charger Nail Gun 6V 7.2V Li-ion Battery Ni-MH Ni-CD Battery Charger For Paslode 404717
Aliexpress UK
Paslode 404717, B20544E, BCPAS-404717, BCPAS-404717SH. For Paslode 902654 CF325Li IM65Li IM250Li B20543A 7.4V 4000mAh Lithium Battery. 4AH 7.4V Li-ion Battery for Paslode 902654 902600 902400 IM250Li IM65Li IM300Li.
eBay
6V 3600mAh NI-MH Replacement Battery Compatible with Paslode 900400 900420 900600 901000 902000
Aliexpress UK
For Paslode 404717, B20544E, BCPAS-404717, BCPAS-404717SH. Quantity: 1/2/3/4x battery. Battery Type: Ni-MH. Battery Capacity:4000mAh / 50 00mAh / 4800mAh. (͡° ͜ʖ ͡°).
eBay
NI-MH Battery 6V 3600mAh Replacement For Paslode 404717 B20544E BCPAS-404717 404400 900400 900420
Aliexpress UK
404717, B20544E, BCPAS-404717, BCPAS-404717SH. Battery Type: Ni-MH. Battery Capacity: 5000mAh. CE, FCC and RoHS certified, 100% for the originals.
eBay
(902600, 902654, B20543A. Paslode 902400, Paslode B20543, Paslode CF325Li, Paslode IM250A Li. Battery Type: Li-ion. Battery Capacity: 2000mAh. excluded.).
eBay
404717, B20544E, BCPAS-404717, BCPAS-404717SH. Battery Capacity: 5000mAh. Battery Type: Ni-MH. CE, FCC and RoHS certified, 100% for the originals. Product Details.
eBay
Use with IM350, IM350+, IM65, IM65A, IM250. Paslode Original Battery. Paslode Battery. Paslode Part Number 404717.
eBay