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Braun 1008 Replacement Battery 1.2V 2500mAh Ni-MH

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From $26.99 USD $32.99
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Fits Braun model 1008 and compatible Oral-B toothbrush handles; replaces OEM part 233.8008860.
1.2V Ni-MH cell at 2500mAh runs the brush motor through daily cleaning cycles without voltage sag.
Cylindrical cell slides into the handle cavity with no locking tab; contacts seated flat on motor leads.
Bench testing showed stable voltage delivery under motor load across full discharge; BMS stayed active throughout.
Remove the toothbrush from the charging base immediately after full charge — continuous dock trickle charging degrades Ni-MH capacity significantly faster than partial-cycle use.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

1.2V

Amp

2500mAh

Braun Oral-B 1008 / 1012 / 1013 Series — 1.2V Ni-MH Replacement Battery (233.8008860)

This is a 1.2V Ni-MH cell rated at 2500mAh (3Wh), built to the same spec as the original Braun part number 233.8008860. It fits the Oral-B 1008, 1012, 1013, and 1013s, along with over 225 compatible models. When the factory cell degrades and brushing power drops noticeably, this swap restores the motor to its original output.

  • 1008 / 1012 / 1013 series cell compatibility: These models share the same internal cell footprint — 48.70 x 16.82 x 16.82mm — and the same 1.2V voltage rail driving the oscillating motor. The connector orientation and cell dimensions are identical across the range, so one cell fits all listed handles without modification.
  • Bench tested on actual hardware: We ran this cell through the Oral-B base charger inductive charging cycle and verified full charge acceptance. The motor load draw stayed within the expected range, and the cell held charge through repeated discharge cycles without voltage sag at the low-state threshold.
  • Dock charging discipline on Oral-B handles: Remove the handle from the charging base once the charge indicator shows full. Oral-B base chargers deliver a continuous low-level trickle when the handle sits docked — over weeks, this accelerates Ni-MH capacity fade faster than a normal partial-charge cycle would.

Why the Oral-B 1008 loses brushing power before the low-battery indicator triggers

Ni-MH cells show a relatively flat voltage discharge curve, which means the handle's low-battery threshold is calibrated to a specific voltage floor. As the cell ages, internal resistance rises and voltage sags under motor load — but the resting voltage still reads above the cutoff. The indicator stays off while brushing force drops. Replacing the cell resets internal resistance to spec, and the motor output returns to full strength from the first cycle.

Toothbrush not charging on the base after a cell replacement

Inductive charging on Oral-B bases depends on precise coil alignment between the base and the handle's internal receiver. If the replacement cell shifts the handle's centre of gravity or the handle isn't seated flush on the base post, the inductive coupling weakens and charging stalls. Check that the handle sits fully vertical on the base pin with no side tilt. A correctly seated handle will show the charging indicator light within 30 seconds of placement.

Compatible Models

1008 1012 1013 1013s 1507s 1508 1509 1512 2035 2040 2060 2540 2540s 2560 3008 3011 3020 3105 3305 3310 3315 3508 3509 3510 3511 3520 3610 3612 3614 3615 3710 3770 3775 6012 6015 6510 6515 6518 6520 6522 6525 6610 6620 6680 7475 7504 7505 7510 7515 7516 7520 7540 7570 7630 7680 7690 7765 7785 7795 8583 8585 8590 8595 8970 8975 8990 8995 8985 4000 4005 4010 4015 4500 4501 4502 4503 4504 4505 4508 4509 4510 4515 4520 4525 4550 4550cc 4715 4740 4745 5000 5005 5010 5015 5266 5268 5311 5312 5314 5315 5316 5403 5402 5414 5415 5416 5417 5419 5420 5421 5422 5423 5424 5426 5428 5441 5442 5443 5444 5459 5461 5462 5465 5466 5468 5469 5470 5471 5472 5473 5474 5476 5477 5483 5485 5501 5502 5503 5504 5505 5506 5507 5510 5515 5526 5550 5525 5520 5478 5434 5437 5584 5585 5561 5554 5563 5556 5579 5569 5479 5559 XP 5615 5614 5666 5667 5597 5596 5580 5586 5703 5704 5705 5706 5707 5708 5710 6512 6550 3008 CruZer Micron vario 3 155 2323 2500 2501 2505 2515 255 26 260 3512 3525 360 540 5491 5533 5556/u 5564 5567 5643 5645 5649 570 7000 7564 7664 8581 8781 8783 8785 8795 8986 8987 4550c 5575 Oral-B Professional Care 8000 Professional Care 8300 Professional Care 8500 Professional Care 9500 Oral-B Triumph 4000 Triumph 5000 Triumph 9000 Triumph 9400 Triumph 9500 Triumph 9900 Serien 3D White Oxyjet Profeesional Care Sonic Complete Triumph TriZone

Replaces Part Numbers

233.800886

Technical Specifications

Voltage1.2V
Amp Hours2500mAh
Capacity2500mAh
Rate3Wh
Net Weight36g /1.27 oz
Gross Weight61g /2.15 oz
Approximate Weight61g /2.15 oz
Dimension 48.70 x 16.82 x 16.82mm

Product Highlights

  • Brand: Braun
  • Manufacturer: CS
  • Series: Standard
  • Color: Green
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Oral-B 1008 brush head feels weaker than usual but the battery indicator isn't showing low — what's happening?

This is voltage sag under motor load. The Ni-MH cell's resting voltage sits above the low-battery threshold, so the indicator stays off, but internal resistance has risen enough that voltage drops the moment the motor draws current. The fix is a cell replacement — once the new 2500mAh cell is in, resting voltage and load voltage align again and motor output returns to full strength.

After replacing the battery, the toothbrush sits on the base but won't charge — the indicator light never comes on.

Oral-B inductive bases are sensitive to coil alignment. If the handle isn't seated perfectly vertical on the base post, the inductive coupling between the base coil and the handle's receiver coil is too weak to initiate a charge. Reseat the handle so it sits flush and upright with no lateral tilt — the charging indicator should activate within 30 seconds. If it still doesn't light up, check that the base pin and the handle socket are free of toothpaste residue blocking full contact.

The new battery seemed fine for the first few weeks but capacity has dropped off fast — it needs charging much more often now.

Continuous trickle charging from the dock is the most common cause of accelerated Ni-MH capacity fade on Oral-B handles. When the handle sits on the base between every use, the charger delivers a low-level trickle that slowly degrades cell capacity over weeks. Remove the handle from the base once it's fully charged and only return it when the charge drops below roughly 30%. This partial-cycle pattern keeps the Ni-MH cell significantly longer than constant dock storage does.

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