Amazon.com: Battool 6000mAh 22.2V DC35 DC31 Battery Replacement Compatible with Dyson DC31 Battery Type A DC34 DC35 DC44 DC45 917083-01 Handheld Vacuum Cleaner (NOT Fit for Type B DC31 DC34 DC35 DC44
Sportsman Deep Cycle Marine Battery - 12V Lead Acid Group 31 - DC31 | Defender
DC31 Hankook Deep Cycle Leisure Battery 12V 100AH
Amazon.com: DTK 4000mAh DC34 Type B Replacement Battery for Dyson DC31 DC34 DC35 DC44 Type B Handheld Vacuum Cleaner Battery Only Fit for Type B : Home & Kitchen