
Rule of thumb for batteries: If they get very hot while charging, you should stop using this charger. My Pro 5000 pen, which has Type 3764 marked on the bottom, gets abnormally hot, won't charge fully (never stops charging), and doesn't register more than 1 charging bar. This is not good for the battery and can cause the battery to overheat and catch fire. So I won't be using it until I find the right charger for the Braun toothbrush handle. I'll update this review when I get a response from Proctor and Gamble, the makers of Braun models.

Electric toothbrush Oral-B Smart 4 4900, black/pink
104 Review

💎 Set of 4 Philips Sonicare HX6064/10 Best White W2 Brush Heads with BrushSync for Effective Teeth Whitening
61 Review

💡 4 Pack of Oral-B Cross Action Electric Toothbrush Replacement Brush Heads
61 Review

Oral B Vitality Limited Precision Clean 🦷 Rechargeable Toothbrush - White Refill for Optimal Oral Cleanliness
83 Review

🦷 Colgate Max Fresh Whitening Toothpaste with Breath Strips, Clean Mint, Limited Edition - 6 Oz, 24 Ounce (Pack of 4)
10 Review

The Legend of Zelda: Breath of the Wild game for Nintendo Switch, cartridge
20 Review

Wild Fuel Dental Probiotics: Fresh Breath & Healthy Bacteria Support - Vegan, Cruelty-Free Chewable Tablets for Oral Health - 45 Mint Flavored, Sugar-Free Travel Tin
14 Review

BLIS Fresh Breath Kit: Potent BLIS K12 Oral Probiotic for Bad Breath & Halitosis Treatment - Clinically Proven Mouthwash, Tongue Scraper, Lozenges - 4 Week Supply
11 Review