Streamlight SL-B9 Rechargeable Battery 850mAh, 2-Pack, 20237

what our customer say this product:

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1. Jose Garcia Verified Buyer – 15 October 2024

   Hold charge for a good amount of time and power my weapon lights perfectly
   

2. Robert N Landstreet Verified Buyer – 19 January 2025

   Great product they increase the brightness of all of my weapon lights, I am very satisfied and will recommend them to all my family members.
   

3. Heriberto Avelino Verified Buyer – 14 March 2025

   Pésimo producto. No merece ni una estrella. Compré 4 baterías confiando en la fama de la marca y la publicidad. De las 4, una ¡simplemente no carga ! (ver foto anexa). La duración de las baterías es mínima. Uso una lámpara de mano frecuentemente, la energía de las baterías dura media hora y después se agota totalmente (!). Es increíble que otras baterías de aparente menor calidad sean superiores a streamlight; en el mismo uso duran hasta 3 días. No es un producto barato, pero es malo , pésimo. No lo compren. ¡Quiero mi dinero de vuelta!
   

4. codeorama Verified Buyer – 12 May 2025

   I have three different guns with Streamlight products and these are nice to have one hand to swap out.
   

5. Noah K Verified Buyer – 13 May 2025

   Bought these as a gift for my father. He says they work as they should!
   

6. Ricky B. Verified Buyer – 14 May 2025

   They are what they are supposed to be. I took them out of the package and charged them fully before use. They both took a while to fully charge, but after that, I installed both of them on my dual-battery Olight Valkery ‘Turbo’ tac-light below my Glock 19 clone and it was brighter than the Panasonic batteries that came with the light from Olight. Only time will tell how long they will run or start fading the beam (maybe update later?), but after a walk around my large back yard for about an hour in the dark, ‘that test’ didn’t even put a strain on them. I then installed one of them on my Streamlight TLR-7 Sub (mounted to my Sig P365X) and it worked as good as the non-rechargeable Streamlight battery that came with it. I’m definitely getting another pack of 2 so I hope to not have to buy these quality batteries again for a long time (good to have back-ups ya know). BARKEEPER…. A ROUND OF ‘FULL CANDELLAS’ FOR EVERYONE PLEASE!! Highly recommend this product…. to stay out of the dark!
   

7. My FAVORITE Part About These Batteries… Verified Buyer – 2 June 2025

   Great rechargeable battery! Awesome batteries by Streamlight!

   

8. Aaron Verified Buyer – 7 June 2025

   Really nice not having to buy new batteries. Every so often I take the batteries out to charge instead of wasting money.
   

9. Raamses J. Vasquez Verified Buyer – 12 June 2025

   Outstanding service and fast delivery product looks amazing. Batteries hold a good charge and when used with a stream light product it let’s out powerfull brightness. What I like about this product is the installation easy to do. As prices wise gose worth every dollar.