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About DTK
DTK is a production, sales in one of the manufacturers, professional production, sales of notebook batteries. To each of our customers with high quality prod...

Buy Now From Amazon

\Ctrl\ + \F\ to find your models

About DTK
DTK is a production, sales in one of the manufacturers, professional production, sales of notebook batteries. To each of our customers with high quality products. Wish you a happy shopping, thank you.

Compatible Models
HP ProBook 440 Series HP ProBook 440 G2 Series HP ProBook 445 Series HP ProBook 445 G2 Series HP ProBook 450 Series HP ProBook 450 G2 Series HP ProBook 455 Series HP ProBook 455 G2 Series HP Beats Special Edition 15 Series HP Envy 14 Series HP Envy 14-v000 - v099 HP Envy 14-u000 - u099 HP Envy 15 Series HP Envy 15-k000 - k099 HP Envy 15-x000 - x099 HP Envy 17 Series HP Envy 17-x000 - x099 HP Pavilion 15 Series HP Pavilion 15-p000 - p099 HP Pavilion 15-x000 - x099 HP Pavilion 17 Series HP Pavilion 17-f000 - f099 HP Pavilion 17-x000-x099

Compatible Part Numbers
756479-421 HSTNN-DB6I HSTNN-DB6K HSTNN-LB6J HSTNN-LB6K VI04 756743-001

Buy with confidence!
Ship next business day
24 x 7 Email Support
We provide 30 days money back and 1 year limited warranty for all our products.

Refund or Exchange:
With-in Amazon refund window, please contact Amazon directly for refund or exchange, which is more efficient.
If pass the refund window, please contact us for refund or exchange.
Please feel free to contact us if any inquiry.


  • 【High Performance】Replacement for Ryobi 40v battery| Battery type: Lithium-Ion | Battery voltage: 40V | Battery capacity: 6.6Ah.Adopt high quality battery cells with low internal resistance and high rate discharge to ensure batteries are efficiency and reliability,allows your Ryobi cordless power tools working more powerful and longer.
  • 【Large Capacity】With 6600mAh higher capacity the 40v replacement for Ryobi battery provides long-lasting performance and durability.6.6 Ah battery gets 3X more runtime than the standard 2.0Ah battery, while no memory effect provides thousands of charges and discharges without loss of capacity.
  • 【Wide Compatibility】DTK battery works with all 40v lithium-ion tools (string trimmer, lawn mower), including RY40200 RY40403 RY40204 RY40530 RY40460 RY40180 RY40250, compatible with original chargers,such as OP403A OP401 ZROP401 OP400A RY40440 etc.
  • 【Perfectly Replace For 40V Battery】Ideal replacement battery for 40V battery OP4050A OP4015 OP4026 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601.the DTK 40v 6.6Ah battery worked just like the original ones,very easy to install and fits perfectly.
  • 【Safe and Reliable】DTK 40v battery have complied with CE, FCC, ROHS certified and standards, built-in over-charge, over-discharge, over-voltage, over-current, over-heating, and short-circuit protection. Three LED indicator light, allows users to conveniently monitor charge levels.Any question feel free to contact our customer service, we will do best to help you.
  • 【High Performance】Replacement for Ryobi 40v battery| Battery type: Lithium-Ion | Battery voltage: 40V | Battery capacity: 6.6Ah.Adopt high quality battery cells with low internal resistance and high rate discharge to ensure batteries are efficiency and reliability,allows your Ryobi cordless power tools working more powerful and longer.
  • 【Large Capacity】With 6600mAh higher capacity the 40v replacement for Ryobi battery provides long-lasting performance and durability.6.6 Ah battery gets 3X more runtime than the standard 2.0Ah battery, while no memory effect provides thousands of charges and discharges without loss of capacity.
  • 【Wide Compatibility】DTK battery works with all 40v lithium-ion tools (string trimmer, lawn mower), including RY40200 RY40403 RY40204 RY40530 RY40460 RY40180 RY40250, compatible with original chargers,such as OP403A OP401 ZROP401 OP400A RY40440 etc.
  • 【Perfectly Replace For 40V Battery】Ideal replacement battery for 40V battery OP4050A OP4015 OP4026 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601.the DTK 40v 6.6Ah battery worked just like the original ones,very easy to install and fits perfectly.
  • 【Safe and Reliable】DTK 40v battery have complied with CE, FCC, ROHS certified and standards, built-in over-charge, over-discharge, over-voltage, over-current, over-heating, and short-circuit protection. Three LED indicator light, allows users to conveniently monitor charge levels.Any question feel free to contact our customer service, we will do best to help you.

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