FDK Replacement Battery Compatible with Braun Oral-b Triumph Professional Care (Type 3731 or 3745) Toothbrush (48mm Long, 17mm Diameter, 2700mAh) - E Toothbrush Care, FXPF-FG

• FDK (Formerly SANYO) OEM rechargeable NiMH battery with narrow tabs. Select the size based on length and diameter of your existing battery. Caution: Check the size before purchase as multiple sizes of battery are in use for this model. Narrow tabs (2mm wide) at both ends require NO tab trimming for insertion if soldering holes are clean. The negative tab is off-centered, matching the original for safe insertion. There are many off-brand low-quality batteries with fragile metal leads/tabs in the market, always look for the mAh capacity and 'Japan' markings and the engraved 'HR' at the negative terminal for genuine OEM battery. Replacing battery in electric toothbrush requires soldering skill. Read battery replacement instruction to assess the difficulty involved and access the old battery before purchase. Tab trimming using scissors is required. Battery package label, color, and shape of tabs might vary. Bonus: best charging practice in keeping rechargeable battery for longer life is provided.